Meaningless "dollar-cost averaging" and "catching a rebound selling"

Using an image I picked up randomly from the internet as an example

There is no way to perfectly time buy-the-dips or buybacks with such precision

If you go on doing this, you won’t have enough money no matter how much you have

I've hardly ever done anything textbook-like, so perhaps you, the readers, understand better than I do??

If you could win with this, no one would be struggling

Many people online discuss moving averages, previous highs and lows, or trendlines for trend-following strategies, but you’d be impossible without understanding ○○○

Stop it

You’ll only go broke

That’s all