Billionaire investor Jeremy Grantham recently made headlines by criticizing Bitcoin, describing it as both "useless" and "speculative." [1] This stance comes after several high-profile investors have taken similar positions. However, not all experts share Grantham's negative views on the cryptocurrency. For instance, a prominent economist at Harvard University has defended Bitcoin’s potential for decentralized finance (DeFi) applications. [2] The Wall Street Journal reported that while some financial analysts see value in Bitcoin as a hedge against inflation and geopolitical risks, others believe it could be a key component of future digital currencies or even serve as an alternative to traditional money. [3] Another expert from the International Monetary Fund (IMF) has suggested that Bitcoin's volatility might make it unsuitable for everyday transactions but noted its potential in certain financial contexts. [1] msn.com (2026-08-01 17:59) [2] The Wall Street Journal (2026-08-03 08:45) [3] Reuters (2026-08-02 14:12)