You have the altcoin market which is like going into a town, and every public bus you get onto has a big fat duffle bag stuffed with cash under 10 out of 20 seats LOOL, so its free money everywhere. Then you are able to take that money and throw 20 TIMES leverage on top of it in the btc to usd market, then you are able to arbitrage between exchanges and then arbitrage between online to cash in hand on localbitcoins.com for an extra 20% to 50% on top.... Its a fucking cocktail of profit
The funny thing is most people can't even trade alts properly, so they never get to experience the full force of crypto like this. Of course that's partly because they're uneducated about how all of these things function so, i guess thats why theres so many people leaving money on the table