According to online reports, Eugene F., a Nobel Prize winner in economics who is known as the "father of modern finance". Fama predicted in her Capitalisn't podcast that Bitcoin will return to zero within 10 years. He believes that a blockchain-based financial system requires too much computing power and is therefore unsustainable. He said cryptocurrencies violate the basic rules of the medium of exchange and their value is highly unstable. He also questioned Bitcoin's positioning as "digital gold" and believed that without practical use, it would be worthless.