It's a valid point. The transition to a fee-based model poses questions about network security and profitability for miners. However, this challenge also opens the door to innovation within Bitcoin's protocol and community-driven solutions to ensure its longevity and stability.

As for Ethereum and NFTs, despite mixed feelings, it's undeniable that Ethereum has expanded the utility of blockchain beyond simple transactions. It introduced smart contracts and decentralized apps (dApps), and even though some NFTs may seem trivial, they've paved the way for blockchain to secure real-world assets and more complex financial instruments. This evolution from Ethereum demonstrates the potential for blockchains to adapt and serve diverse needs beyond basic transactions. While not without its criticisms, Ethereum's contributions have been pivotal in exploring how we can make money—and assets in general—more programmable and interoperable in a digital age.

Bitcoin and Ethereum offer valuable lessons in the ongoing dialogue about the future of finance, highlighting the importance of scalability, sustainability, and utility in blockchain ecosystems.

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