A man called Eugene Fama a key figure in modern finance, argued that btc was preordained to become worthless. His main concerns was Bitcoin's volatility. This man refuse to understand that the decentralized nature and Supreme security have made it an attractive hedge against inflation and economic instability
Bitcoins future is great
There are many people who give negative opinions about Bitcoin but they later realize that their opinions were not reasonable at all. Some prominent influential people predict that Bitcoin will fall to the bottom again and some influential people predict that Bitcoin will fall to zero but they do not realize that now it has reached the peak of people's popularity. Many people will make such opinions over time and we have to ignore all those opinions and move forward, but our investment and Bitcoin will succeed.