If you'd bought every fad coin your brother recommended to you, even though it was a bad idea in your own judgement then I think you'd have zero dollars.

My brother is not a crypto guru, we just discussed about BTC. It was a philosophical conversation in the spirit of perhaps it will become an alternative to conventional money, then it could greatly increase in value.

But I agree that buying new coins is like buying lottery tickets - if you buy all the tickets, there will be no money left.