How did Hurricane Katrina happen?
How did 9/11 happen?
How did Coronavirus happen?
How did George Floyd happen?
How did the Dot com bubble happen?
How did the Housing crisis market bubble happen?
It's a complicated, dynamic, storm stew of variables and elements that are not necessarily easily, instantly, repeatable. And that's the way the market, the S&P, can trade every day.
Huh, wha? The HOW of those events do not matter. What matters is the WHY the markets do what they did AFTER those events.
This is what happens when you use a MacBookPro.
