Justin Drake claims Bitcoin’s fixed supply poses security risks, relying on miner rewards for revenue. The cost to defend against a 51% attack is estimated at 10 billion USD and 10 gigawatts of power, which could make Bitcoin vulnerable.

Drake points out that Ethereum’s issuance has become deflationary but has recently increased after the Dencun upgrade. He anticipates that ETH will attract attention as it aims for a decrease in issuance while improving its soundness.

Supporters of Bitcoin argue that advancements in mining technology could enhance sustainability and lower costs. They believe that the growing network fees will cover operational expenses as mining evolves.