Why do you need to pursue ghosts? I mean it's strange. What i think is that author need to read something or watch something considering crypto, there are a lot of material in internet. You can also buy crypto
https://kuna.io/markets/btcusdt if you want and then exchange it. See what crypto is profitable right now and then just trade. It's like when you buy dollars(for people who are not in US). You see if dollar will rise and then sell and acquire more money in your national currency. All simple here i think