It's not necessarily buying on bottoms, because obviously no one knows where bottoms are; it's more of buying when people are panicking. But yea, it's definitely a strategy that's not for everyone as DCA is safer and mostly better for the typical hodler's mental health.
lol, the inability to accurately find the bottom is everyone's problem in crypto trading because sincerely speaking, charts aren't always accurate so what I usually do is percentage buys, while it keeps dumping low, I keep averaging down because I usually have my funds in 5 place as at 20percent each waiting for such incidence