"I don't like when CNBC tries to explain essentially random stock market movements with confidence."

This is a very good point. We are bombarded with questions on the narrative for a price move and people confidently providing this narrative. But in the end it is more buyers or sellers that moves the market. I prefer to think of this in a simple way. Keeps my head clear.

And yes, being diversified and taking the '2020' longer view, a tanking market is nothing I worry about.