Tom Lee of BitMine and veteran trader Peter Brandt have cautioned that Bitcoin could face a 50% decline, even amid record inflows into Bitcoin ETFs. Lee, also the research director at Fundstrat Global Advisors, highlighted Bitcoin's status as a 'high-beta asset,' suggesting it could fall twice as much as the S&P 500 during market downturns. Brandt likened Bitcoin's current price pattern to the 1977 soybean crash, indicating a similar drop could occur. Despite these warnings, Bitcoin ETFs saw a $20 million net inflow, while Ethereum ETFs experienced a $128 million outflow, according to Farside Investors.