When buying crypcurrency, Buffett said, "You do not invest when you do it. You are speculating. There is nothing wrong with that. If you want to bet others will come and pay more money in the near future, it's a kind of game. But that is not investment. " Are we participating in a game?
it doesnt matter. as long you gained profit more than your funds, it is called investment.
it cant be called speculation too. if you speculate, then you just need to buy bitcoin $1 now, and win $1000 later in a short time.