I'm not sure, I'm not really an expert in the field, though I do this professionally (but it's just a tiny part of what I do). I just call it A/B testing...
There is no overlap, it's two different traits, both of which are a spectrum. You can have full social anxiety while not having any introversion, and vice versa. I am introvert very much and yet I have zero social anxiety.
The problem with fast charging and batteries is overheating, and more frequent overcharging. It's possible to fast charge in entirely safe, non-damaging ranges.
I was frustrated all day because I couldn't find my fast charging cable and just couldn't leave the phone plugged for more than 15-20 minutes at a time due to various activities, which also required a lot of battery charge (photo/video shooting), so I was dancing around the charger all day...
My point is that no, it's not illegal based on type of aircraft - it's legal if you have the proper pilot license. And it's not hard to get it (few weekends of study).
Why should there be nobody on the ground below? Other kinds of aircraft can fly over people. Quadcopters are much easier to control and stabilize than other kinds of aircraft.
Don't ask for a million dollars per year and you'll have plenty of opportunities. There are tens of thousands of unfilled software jobs for higher than average wages.
No, it actually seems to be the most likely explanation. The universe is so young yet. It's just a cosmic blip of time since the current generation of stars has began forming.
You might feel like that, but it's only because you don't know it describes a category. As I said, please find a more appropriate job if you're in a hiring position.
Yeah, I'm European. Nowadays it's getting similar, but it was very different under communism - and the regime spent a lot of money to convince people to have children early.