Watch this part of this video:
https://www.youtube.com/watch?v=EFxsIbhPws4#t=1h07m30sYou see Brian Kelly (
http://www.briankellycapital.com/bitcoin-big-bang/), one of the biggest Wall Street bitcoin bulls who wrote "the Bitcoin Big Bang: how alternative currencies are going to change the world" being concerned about bitcoin as an investment and admit that
"bitcoin operates on a greater fools theory, which is fine until you run out of fools" .
Did we just witness one of the biggest Wall Street Bitcoin bulls just turn bearish?
By the way, the whole video is great is you're interested.
Don't think he has turned bearish. As you say he wrote a book, has his own coin (nautilus) and has been an outspoken advocate. But that's not to say that statement doesn't hold true.
Bitcoin is many things to many people. BK is a stocks guy, looking at bitcoin like a stock; people speculate (buy) when they think the price will rise. Could be like a tech stock where people speculate because of the emerging platform / network / users. In this case they plan to be an 'early adopter' or entry level investor etc and sell when the price rises. Trading mindset, greater fool needed.
Some see it as a commodity akin to gold, an immature store of value. Buy and hold mindset, greater fool or at least someone to exchange goods with is eventually needed.
Others see it as a future industry. The security guys, the business services guys. A cheaper way to do things like remittance, money transfer. Quick, trustless, no 3rd party and a secure blockchain. These people also have to be speculators because this infrastructure isnt built out yet. The VC's invest to do this building, the CS grads, the business schoolers get into start ups to create the rails. Tech mindset, greater fools down the line.
Most burgeoning industries, especially ones that disrupt finance, need a greater fool. It's not that controversial to say it out loud. If you could have invested in Airbnb, Twitter, Facebook, Uber etc etc you would have been doing so for the same reasons; you think it is going somewhere.