I heard this argument before 2020s crash. I exited early before it because I feared his prediction. Did it hold up during 2020 crash? In March 2020 everything c

I heard this argument before 2020s crash. I exited early before it because I feared his prediction. Did it hold up during 2020 crash? In March 2020 everything crashed very fast but also rebounded extremely fast when the fed turned on the printing press. My personal opinion is that what matters is just the Fed. Index bubble, everything bubble, crypto bubble. It all doesn't matter, what matters is just what the Fed is doing. And the Fed is a few mistake prone officials who could forget to turn on interest rate for an entire year, so whatever Jerome Powell had for breakfast might end up being more important than what an experienced economist says.