it's good if you want to invest in altcoins, you can buy low prices, because it will definitely decrease continuously. It is safer to buy bitcoin.
Seems like you did a typo here. If the price of alts continuously decreases then you should not buy it, and that means buying alts is not a good thing.
Anyway, that's not related to OP at all.
I don't see you wrong. Because in the field of investment, you can never know the future.
He's trading, not investing. He clearly uses a crazy short time frame which is not ideal for scalping.