It’s very cool to get your childhood’s questions answered when you get older. I doubt these are absolute answers, but at least the narrative becomes more plausible. Now I can give it to my kid, and I hope he will be going further to carve the narrative that fits him better and crosses off a few more points on the completeness checklist.
Why am I scared of people? Why two plus two is four? Why people feel like they need to go to the cemetery to visit graves of their relatives? How does the vacuum cleaner roll up its cord when the cord is attached on one of its ends?
My personal favorite was actually “Why two plus two is four?” My narrative is that decimal counting system is the winning abstraction about what humans have observed around nature.