I agree with the thrust of your comment, but to nitpick:

> Books have been written around timing markets and it's generally accepted that it cannot be done reliably. To get out before a crash then buy cheap would require you to predict three different moments accurately: when to get in, when to get out, and then when to buy on the "cheap". Timing even one reliably requires luck or clairvoyance.

This doesn’t strike me as true, unless you’re describing the subset of academic economists who agree with EMH in some form. In particular, the first sentence on its own appears to be evidently untrue; it’s clear that there are many parties, including economists and financiers, who attempt to time the market and generally forecast macroeconomic shifts.