The Environmental Impact of DeFi: Addressing the Energy Consumption Concerns

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Delve into the transformative power of blockchain, extending far beyond the realm of cryptocurrencies. We explore its potential in Decentralized Finance (DeFi), enterprise solutions, regulatory frameworks, and the future of decentralized systems.

Today, we're tackling a critical issue within the DeFi space: DeFi energy consumption challenges. Discover the hidden environmental costs of this revolutionary technology and what innovative solutions are emerging to address them. Ready to uncover the truth behind DeFi's carbon footprint?

The Environmental Impact of Cryptocurrency: Addressing Energy Consumption and Waste

The rapid ascent of cryptocurrency from a niche technological experiment to a global financial phenomenon has brought significant attention to its potential environmental impact. While the focus initially centered on the revolutionary aspects of decentralized finance (DeFi) and digital assets, concerns about energy consumption and electronic waste have become increasingly prominent.

Understanding the scale and sources of this impact is crucial for fostering sustainable growth in the blockchain ecosystem and effectively addressing the DeFi energy consumption challenges that arise from the underlying infrastructure. The energy demands associated with securing and validating transactions on certain blockchain networks represent a substantial environmental footprint that requires careful analysis and proactive solutions.

Addressing these environmental concerns is not merely an academic exercise; it's essential for the long-term viability and public perception of cryptocurrency and DeFi. As more individuals and institutions adopt decentralized technologies, the aggregate energy usage escalates, potentially contradicting global efforts to combat climate change.

Therefore, a comprehensive approach is needed to identify the root causes of high energy consumption, explore viable alternatives, and implement strategies that pave the way for a more environmentally conscious future for digital finance. This includes examining the specific DeFi energy consumption challenges inherent in running complex smart contracts and maintaining network security on various blockchain types.

Understanding Cryptocurrency's Environmental Footprint

Cryptocurrency's environmental footprint is primarily determined by the energy required to power the networks that secure transactions and mint new units. While the concept of digital money itself is intangible, the computational processes underpinning many major cryptocurrencies are very much rooted in physical energy consumption. This footprint extends beyond just electricity usage, encompassing the manufacturing and disposal of specialized hardware used in mining operations, which contributes to electronic waste. A clear understanding of these factors is the first step in tackling the broader DeFi energy consumption challenges.

The environmental impact varies significantly depending on the consensus mechanism employed by a particular blockchain. Some mechanisms are inherently more energy-intensive than others, leading to vastly different environmental profiles across the cryptocurrency landscape. Identifying the specific components and processes that contribute most significantly to this footprint is key to developing targeted mitigation strategies and differentiating between the impacts of various blockchain platforms supporting DeFi.

The Rise of Cryptocurrency and its Environmental Implications

The early days of cryptocurrency saw limited participation, and the energy consumption was negligible on a global scale. However, as Bitcoin and later other cryptocurrencies gained popularity, their market capitalization and network activity surged. This growth necessitated more computational power to maintain network security, particularly for blockchains relying on Proof-of-Work (PoW) consensus. The environmental implications began to surface as the energy required reached levels comparable to that of small countries.

This exponential increase in energy demand, driven by rising prices and network hash rates, brought the environmental cost into sharp focus. The decentralized nature of cryptocurrency meant that mining operations could be established anywhere electricity was cheap, sometimes leading to reliance on fossil fuel-based power sources. The discussion around the environmental impact intensified, highlighting the need for the industry to confront its energy usage and explore more sustainable alternatives to mitigate future DeFi energy consumption challenges.

Identifying the Main Contributors to Cryptocurrency's Energy Usage and E-Waste

The primary contributor to the high energy consumption of many cryptocurrencies is the mining process, especially under the Proof-of-Work model. Miners use powerful computers to solve complex mathematical problems; the first miner to find a solution gets to add the next block of transactions to the blockchain and is rewarded with newly minted cryptocurrency. This process is intentionally resource-intensive to make it costly for malicious actors to attack the network. The aggregate energy used by millions of these machines running continuously is substantial.

Beyond electricity, the specialized hardware used for mining, known as ASICs (Application-Specific Integrated Circuits), has a relatively short lifespan due to rapid technological advancements and the competitive nature of mining. As newer, more efficient hardware becomes available, older machines are often discarded, contributing to a growing problem of electronic waste. This e-waste contains hazardous materials and requires proper disposal, adding another layer to the environmental footprint of certain cryptocurrencies and, by extension, the DeFi energy consumption challenges associated with the networks they run on.

How Proof-of-Work (PoW) Impacts Cryptocurrency Sustainability

Proof-of-Work is the original and, for many years, the dominant consensus mechanism used by major cryptocurrencies like Bitcoin. Its core principle is that participants (miners) expend computational "work" to prove their commitment to the network and earn the right to validate transactions. This work translates directly into energy consumption. The more computing power (hash rate) directed at the network, the higher the difficulty of the mathematical problems becomes, requiring even more energy to maintain a competitive edge and secure the network.

This inherent design makes PoW networks extremely energy-intensive. While it provides a high level of security and decentralization, the environmental cost in terms of electricity consumption and carbon emissions is significant. The sustainability of PoW-based cryptocurrencies, especially in the context of global climate goals, is a major point of contention and contributes substantially to the overall discussion around DeFi energy consumption challenges, particularly for DeFi protocols deployed on these networks.

Analyzing the Environmental Concerns Associated with Cryptocurrency Mining

The environmental concerns surrounding cryptocurrency mining are multifaceted, extending beyond mere electricity consumption to include the sources of that energy and the resulting carbon emissions. The decentralized nature of mining means operations are geographically distributed, often seeking out regions with cheap electricity, which may not always be sourced from renewable resources. Analyzing these concerns involves quantifying the impact and understanding the knock-on effects on local energy grids and environmental targets.

This analysis is critical for a realistic assessment of the blockchain industry's environmental footprint and for developing strategies to mitigate negative impacts. Understanding where and how energy is consumed by mining operations provides insights into the most effective levers for change, whether through promoting renewable energy adoption or transitioning to less energy-hungry consensus mechanisms, thereby addressing specific DeFi energy consumption challenges tied to network validation.

Quantifying the Carbon Footprint of Bitcoin Transactions

Quantifying the carbon footprint of Bitcoin transactions is complex, as it depends on the energy mix used by miners globally. However, various studies and indices provide estimates. For example, the Cambridge Bitcoin Electricity Consumption Index (CBECI) provides a real-time estimate of Bitcoin's total energy consumption, often illustrating it as comparable to the energy usage of medium-sized countries. Estimates for the carbon footprint per transaction vary widely, but some analyses suggest that a single Bitcoin transaction can have a carbon footprint equivalent to tens or even hundreds of thousands of Visa transactions.

It's important to note that critics argue the "energy per transaction" metric can be misleading for PoW systems like Bitcoin, as the total energy consumption is primarily driven by the network's security budget (hash rate) rather than the number of transactions processed. Regardless of the metric used, the aggregate energy demand and associated emissions are substantial, representing a significant environmental cost that contributes to the broader DeFi energy consumption challenges when considering the foundation layer.

The Link Between Mining Operations and Increased Energy Demand

Large-scale cryptocurrency mining operations can significantly impact local and regional energy grids. The sudden influx of high-density computing requires substantial power, which can strain existing infrastructure, especially in areas with limited surplus capacity. This increased demand can lead to higher electricity prices for local residents and businesses. In some cases, it has even led to concerns about grid stability and the potential for power shortages.

Furthermore, if the increased energy demand is met by ramping up production from fossil fuel power plants, it directly leads to a rise in greenhouse gas emissions. This connection between mining operations and increased energy demand highlights the critical need to transition mining activities towards regions with abundant renewable energy sources or to adopt blockchain technologies that require significantly less power, thereby helping to alleviate DeFi energy consumption challenges at the protocol level.

Bitcoin Mining in Kazakhstan: An Example of Energy Strain

Following crackdowns on mining in other regions, Kazakhstan emerged as a major hub for Bitcoin mining due to its relatively cheap electricity. However, this rapid growth in mining activity placed immense strain on the country's aging power infrastructure. The sudden surge in demand, estimated to have increased the country's total electricity consumption by several percentage points, led to power shortages and forced the government to import electricity from Russia.

This case study in Kazakhstan provides a stark example of how large-scale PoW mining can directly impact a nation's energy security and infrastructure. It underscores the environmental risks associated with relying on potentially unstable or fossil fuel-dependent grids to power energy-intensive computational processes. Such scenarios illustrate the systemic DeFi energy consumption challenges when decentralized applications rely on the stability and energy sources of the underlying PoW network.

Exploring Sustainable Solutions for Cryptocurrency Energy Consumption

The cryptocurrency industry is actively exploring and implementing various sustainable solutions to mitigate its environmental impact. These efforts range from fundamental shifts in blockchain architecture to operational changes in how networks are powered. The goal is to maintain the security and functionality of decentralized systems while drastically reducing their energy footprint. These solutions are particularly relevant for addressing the DeFi energy consumption challenges by making the underlying platforms more efficient.

Innovations in consensus mechanisms, scaling technologies, and the integration of renewable energy sources are at the forefront of these efforts. The move towards more energy-efficient designs is seen as essential for the long-term acceptance and widespread adoption of blockchain technology and DeFi applications, ensuring they can scale without imposing an unsustainable burden on the planet's resources.

Transitioning to Proof-of-Stake (PoS) in Ethereum

One of the most significant developments in addressing blockchain energy consumption is the transition of the Ethereum network from Proof-of-Work to Proof-of-Stake (PoS). Completed in September 2022 (known as "The Merge"), this transition replaced energy-intensive mining with a system where validators "stake" their Ether to participate in block creation and validation. This fundamentally alters the network's energy profile.

The shift to PoS is estimated to have reduced Ethereum's energy consumption by approximately 99.95%. Instead of requiring vast computational power, network security relies on the economic stake of validators. This move dramatically lowers the environmental footprint of the vast ecosystem of dApps, including numerous DeFi protocols, built on Ethereum, directly addressing a major source of DeFi energy consumption challenges on this dominant platform.

Layer-2 Scaling Solutions for Reduced Energy Usage on Bitcoin

While Bitcoin remains a PoW network, Layer-2 (L2) scaling solutions offer a way to reduce the energy impact per transaction by moving a significant volume of activity off the main chain. Solutions like the Lightning Network allow users to conduct multiple transactions off-chain within payment channels, settling only the final state on the energy-intensive Bitcoin base layer. This reduces the number of transactions that need to be processed and validated by the entire network.

Although not changing Bitcoin's underlying PoW mechanism, L2 solutions decrease the effective energy cost per transaction for users who utilize these layers. For DeFi applications that might interact with the Bitcoin network (though most reside on other chains), or for future cross-chain DeFi solutions, the adoption of L2 scaling is a strategy to minimize the environmental cost associated with settling on a PoW chain. This contributes indirectly to mitigating DeFi energy consumption challenges in a multi-chain world.

Chia Network: A Cryptocurrency Utilizing Proof-of-Space-and-Time

Chia Network proposes an alternative consensus mechanism called Proof-of-Space-and-Time (PoST), designed to be less energy-intensive than PoW. Instead of relying on computational power, PoST uses storage space ("plots") on hard drives. Farmers (validators) allocate unused disk space to store cryptographic proofs. The chance of winning a block reward is proportional to the amount of storage space allocated.

The proponents of Chia claim that utilizing existing, underutilized storage space is significantly more energy-efficient than the continuous, high-power computation required for PoW mining. While PoST can lead to increased demand for hard drives and potential e-waste concerns related to drive lifespan, its operational energy consumption is substantially lower than PoW, presenting another model for potentially more sustainable blockchain networks and addressing DeFi energy consumption challenges for protocols built on such chains.

The Role of Renewable Energy in Powering Cryptocurrency Mining

Recognizing the environmental concerns, there is a growing movement within the cryptocurrency mining sector to transition towards renewable energy sources. While the overall energy consumption of PoW mining remains high, powering these operations with solar, wind, hydroelectric, or geothermal energy significantly reduces their carbon footprint. This shift is seen as a crucial step for the industry to become more sustainable, even for energy-intensive activities.

Integrating renewable energy into mining operations involves both direct sourcing (e.g., building mining facilities near renewable power plants) and participating in energy markets that prioritize green energy. This approach directly tackles the emissions problem associated with mining, offering a pathway for PoW networks to reduce their environmental impact, which in turn lessens the DeFi energy consumption challenges tied to their base layer operations.

Utilizing Solar and Wind Energy for Mining Operations

Many mining companies are actively seeking locations with abundant and inexpensive renewable energy, such as solar and wind power. For instance, facilities are being established in regions with significant solar potential or strong wind resources. These operations can sometimes utilize surplus renewable energy that might otherwise go unused or be curtailed, effectively providing a consistent demand for renewable generation.

Examples include mining farms co-located with solar panel arrays or wind farms. While the logistics and infrastructure required can be challenging, powering mining with renewables eliminates the direct carbon emissions associated with fossil fuels. This strategic shift is a vital part of making energy-intensive blockchain activities, and thus the foundational layer for some DeFi, more environmentally friendly.

Carbon Offsetting Strategies for Cryptocurrency Projects

Beyond directly using renewable energy, some cryptocurrency projects and companies are implementing carbon offsetting strategies. This involves investing in projects that reduce greenhouse gas emissions elsewhere to compensate for their own emissions. Examples include funding reforestation efforts, renewable energy projects, or initiatives focused on energy efficiency.

While carbon offsetting can be a temporary measure or part of a broader sustainability plan, it is often viewed as less impactful than directly reducing energy consumption or switching to renewable sources. The effectiveness and integrity of carbon offsetting programs can vary, requiring careful consideration and verification. Nevertheless, it represents an attempt by the industry to take responsibility for its emissions and contribute to global carbon reduction efforts, indirectly addressing DeFi energy consumption challenges by supporting a greener ecosystem.

The Crypto Climate Accord: A Green Initiative Analysis

The Crypto Climate Accord (CCA) is a private-sector-led initiative inspired by the Paris Agreement, aiming to decarbonize the cryptocurrency industry. The accord brings together companies and individuals from the crypto, finance, and environmental sectors with the goal of achieving net-zero greenhouse gas emissions from electricity consumption by 2030. Signatories commit to measuring their energy use, reducing emissions, and exploring sustainable solutions.

The CCA promotes transparency in energy reporting, advocates for the adoption of energy-efficient technologies and consensus mechanisms, and supports the development of market mechanisms to accelerate the transition to renewable energy. While voluntary, the accord signifies a growing commitment within the industry to address its environmental footprint collaboratively, highlighting the collective effort needed to tackle the broader DeFi energy consumption challenges and build a sustainable future.

Mitigating Cryptocurrency Energy Consumption: Best Practices and Strategies

Reducing the energy consumption of cryptocurrency networks requires a multi-pronged approach involving technological advancements, operational efficiencies, and thoughtful blockchain design. Implementing best practices across the industry can lead to significant energy savings and a more sustainable ecosystem. These strategies are relevant not only for core blockchain infrastructure but also for how decentralized applications, including DeFi protocols, interact with and build upon these networks.

Mitigation efforts focus on optimizing existing processes, exploring fundamental changes in network architecture, and establishing guidelines for future development. By adopting these strategies, the industry can work towards minimizing its environmental impact while continuing to innovate and provide the benefits of decentralization and DeFi. Addressing DeFi energy consumption challenges effectively requires implementing these best practices at multiple levels of the blockchain stack.

Optimizing Mining Hardware for Energy Efficiency

For Proof-of-Work networks, improving the energy efficiency of mining hardware is a key strategy. Manufacturers of ASICs are continuously developing more powerful chips that consume less energy per unit of computational power (hash rate). Upgrading to the latest generation of energy-efficient hardware can significantly reduce the electricity consumed by mining operations for the same output.

However, the rapid obsolescence of older hardware presents an e-waste challenge. Encouraging the responsible recycling or repurposing of outdated mining equipment is also part of optimizing the overall environmental footprint. Focusing on efficiency at the hardware level is a necessary component of addressing the DeFi energy consumption challenges associated with networks relying on PoW mining.

Reducing Transaction Frequency Through Blockchain Design

Blockchain design can also play a role in mitigating energy consumption, particularly by reducing the need for frequent, individual transactions to be processed on the energy-intensive base layer. Techniques like transaction batching, where multiple transactions are bundled together before being included in a block, can increase throughput and reduce the energy cost per individual transaction.

Furthermore, designing protocols to minimize unnecessary on-chain operations or leveraging off-chain computation where possible can also contribute to energy savings. While not changing the underlying consensus mechanism, these design choices within protocols and dApps can help manage the load on the network, indirectly contributing to a reduction in energy consumption and helping to address DeFi energy consumption challenges at the application level.

Framework for Sustainable Cryptocurrency Development

Establishing a framework for sustainable cryptocurrency development involves incorporating environmental considerations from the initial design phase of new blockchain networks and protocols. This includes prioritizing energy-efficient consensus mechanisms, designing for scalability to handle high transaction volumes without proportional energy increases, and considering the full lifecycle environmental impact of hardware and operations.

Such a framework would encourage innovation in green blockchain technologies and incentivize projects to adopt environmentally conscious practices. By embedding sustainability into the core development process, the industry can proactively address potential environmental issues before they become widespread problems, laying the groundwork for a future where DeFi energy consumption challenges are significantly reduced by design.

The Future of Sustainable Cryptocurrency: Innovations and Predictions

The trajectory of sustainable cryptocurrency is marked by ongoing innovation and a growing collective commitment to reducing environmental impact. The focus is shifting towards developing and implementing technologies that offer both performance and energy efficiency. Predictions point towards a future where energy-intensive PoW may become less dominant, replaced or supplemented by a variety of more sustainable alternatives.

The future landscape of blockchain and DeFi is expected to be shaped by advancements in consensus mechanisms, scaling solutions, and a greater emphasis on transparency regarding energy usage. These innovations hold the potential to significantly lower the environmental footprint of the entire ecosystem, effectively tackling the DeFi energy consumption challenges that currently exist.

Emerging Technologies for Energy-Efficient Consensus Mechanisms

Beyond PoS and PoST, research and development continue into other energy-efficient consensus mechanisms. These include Proof-of-Authority (PoA), Delegated Proof-of-Stake (DPoS), and various forms of hybrid consensus models. Each mechanism offers different trade-offs between decentralization, security, scalability, and energy consumption.

For example, PoA and DPoS typically consume far less energy than PoW, relying on a smaller set of validators or delegates. While they may raise different concerns regarding centralization, they offer viable pathways for building energy-efficient blockchain networks. Continued exploration and refinement of these and other novel consensus mechanisms are crucial for building the next generation of sustainable blockchain infrastructure, directly impacting the DeFi energy consumption challenges for protocols deployed on them.

The Potential of Sharding and Other Scaling Solutions

Scaling solutions like sharding, which involves dividing a blockchain network into smaller, more manageable segments (shards) capable of processing transactions in parallel, hold significant potential for improving energy efficiency. By increasing the overall transaction throughput of a network without requiring a proportional increase in computational power or validator count, sharding can reduce the energy cost per transaction.

Other scaling techniques, such as optimistic rollups and zero-knowledge rollups (ZK-rollups) used extensively in DeFi on networks like Ethereum, process transactions off-chain and submit compressed proofs to the base layer. These methods drastically reduce the load on the main chain, leading to substantial energy savings compared to executing every transaction directly on the base layer. The widespread adoption of these scaling solutions is crucial for mitigating DeFi energy consumption challenges on high-activity networks.

Expert Opinions on the Future of Green Cryptocurrency

Experts in the field generally agree that the trend towards more sustainable blockchain technologies is accelerating. The successful transition of Ethereum to PoS is often cited as a watershed moment, demonstrating the feasibility of moving away from energy-intensive PoW for large networks. Many predict that future major blockchain protocols will likely adopt PoS or similar energy-efficient mechanisms.

There is also a consensus that greater transparency regarding the energy sources used by mining operations is needed. Experts emphasize that while some PoW mining is already powered by renewables, the overall mix needs to shift drastically. The focus remains on innovation in consensus mechanisms, scaling, and integrating renewable energy to build a truly sustainable digital economy that effectively addresses the DeFi energy consumption challenges.

Cryptocurrency Energy Consumption Challenges: A Call to Action

Addressing the cryptocurrency energy consumption challenges requires a concerted effort from all stakeholders within the ecosystem: developers, miners, users, investors, and regulators. While significant progress is being made with the adoption of energy-efficient technologies like Proof-of-Stake and scaling solutions, the journey towards a truly sustainable blockchain industry is ongoing. The specific DeFi energy consumption challenges are intertwined with the energy efficiency of the underlying blockchains they operate on.

This situation calls for increased awareness, greater transparency, and proactive collaboration to implement solutions that minimize the environmental footprint of decentralized finance and the broader blockchain space. Ignoring these challenges risks undermining the potential positive impacts of this transformative technology.

The Importance of Transparency and Accountability in Cryptocurrency Energy Usage

Greater transparency regarding the energy sources and consumption of blockchain networks and mining operations is essential. Standardized reporting metrics and independent audits can help users, investors, and the public understand the true environmental cost of different cryptocurrencies and DeFi platforms. This information empowers stakeholders to make informed decisions and pressure projects and miners to adopt more sustainable practices.

Accountability mechanisms are also necessary to ensure that environmental commitments are met. This could involve industry standards, certifications, or even regulatory measures in certain jurisdictions. Transparency and accountability are foundational steps towards effectively measuring and addressing the DeFi energy consumption challenges.

Encouraging Collaboration for a Sustainable Cryptocurrency Ecosystem

Solving the environmental challenges facing cryptocurrency requires collaboration across the entire ecosystem. Developers can prioritize energy-efficient designs, miners can invest in renewable energy infrastructure, exchanges and wallets can support greener assets, and users can choose to interact with protocols on more sustainable networks. Industry initiatives like the Crypto Climate Accord facilitate this collaboration.

Working together, the community can accelerate the transition to a lower-carbon footprint. This includes sharing best practices, investing in research and development for green technologies, and educating the public about the environmental aspects of different blockchain networks. Collaborative efforts are key to overcoming the complex DeFi energy consumption challenges.

Concluding Thoughts on the Future of Environmentally Conscious Cryptocurrency

The environmental impact of cryptocurrency, particularly the energy consumption associated with Proof-of-Work mining, has been a significant hurdle for its broader acceptance. However, the industry is demonstrating a growing commitment to sustainability through technological innovation, the adoption of energy-efficient consensus mechanisms like Proof-of-Stake, and the integration of renewable energy sources.

While challenges remain, particularly concerning older PoW networks and the rapid growth of the ecosystem, the path towards a more environmentally conscious future for cryptocurrency and DeFi is becoming clearer. Continued focus on energy efficiency, transparency, and collaboration will be crucial in ensuring that the transformative potential of decentralized technologies can be realized without compromising the health of the planet. Addressing the DeFi energy consumption challenges is not just an environmental imperative, but a necessary step for the long-term success and adoption of decentralized finance.

Final Reflection: Embracing Sustainable DeFi

The exploration of DeFi energy consumption challenges reveals a critical intersection between technological innovation and environmental responsibility. What began as a revolutionary financial paradigm now demands a conscious re-evaluation of its ecological footprint, urging us to confront the energy-intensive realities underpinning its decentralized architecture. The urgency to address these concerns is paramount, as the continued growth of DeFi hinges on its ability to adopt sustainable practices.

The impact of DeFi on the environment is not merely a technical issue; it's a reflection of our broader societal values and priorities. The choices we make today in shaping the future of DeFi will resonate far beyond the financial realm, influencing the sustainability of our planet for generations to come. We do not inherit the earth from our ancestors; we borrow it from our children. This ancient proverb reminds us that our actions have profound consequences, demanding that we prioritize long-term ecological well-being over short-term gains.

As we stand at this pivotal juncture, let us not shy away from the challenges ahead. Instead, let us embrace innovation and collaboration to forge a more sustainable path for DeFi. Consider how you, as an individual, can contribute to this transformation. Are you supporting projects committed to energy efficiency? Are you advocating for responsible governance within the DeFi space? The future of finance, and indeed the future of our planet, depends on our collective commitment to building a more environmentally conscious and equitable world.

Ignite Sustainable DeFi: Take Action Now!

Thank you for exploring the crucial intersection of decentralized finance and environmental sustainability with Blockchain Trends. We hope this article has helped clarify the energy consumption issues and potential solutions. Now, you can help shape a greener future for blockchain technology.

Here are some ways you can get involved:

• Support Eco-Friendly DeFi: Choose and endorse DeFi platforms that prioritize energy efficiency and sustainable practices. Your support can make a difference.
• Raise Awareness: Share this article and other resources from Blockchain Trends with your network. Start conversations and educate others about the environmental impact of blockchain.
• Learn More: Investigate alternative consensus mechanisms, such as proof-of-stake, and discover how they can drastically reduce blockchain's energy footprint.

What small step will you take today to promote sustainable DeFi and contribute to a greener blockchain future? Share your ideas in the comments below!