Ask HN: What was the most interesting Zoom call you've had in the last 4 weeks?

I've been on 50+ Zoom calls this past month. Some are work related, some are for my (small) kids (classes + hanging out). Then most interesting Zoom call I attended was when this guy explained investing to six-year olds. I have to say I finally learned what I needed to know about finance--using a lemonade stand example.