Raghuram Rajan, Former Governor, RBI
"I think one has to look around the world. Bitcoin reached $40,000 after being at $10,000 in the beginning of last year. So Bitcoin is the classic bubble, right, it produces no value. It is an asset, which can't even be used for payment because it is really difficult. And yet it hit $40,000. So why are people buying Bitcoin, because they think it will go up. And that is bubblish thinking."