This chart just showed how it’s impossible to time the market. Sure the last two cycle happened pretty smoothly, but look further back than that and you’ll see that there’s really no bottom. Like between the 50s and 70s. If you wait for a true bottom, you might have wasted 20 years.
Also, that chart showed as recently as mid 90s, there’s a dead cat bounce. There are also many dead cat bounce between 50s and 70s.