I'm not sure what you mean, is string theory not part of physics? But yeah she said she has a list of things to go through, more dot points than a script. Her normal videos are typically scripted though.

I got real excited for a second. Why must they tease us so

She made a comment about it early on. I think it's to distract her a little so she doesn't just spend the next hour talking in detail about maths.

Good lord it's rare to see maeder anywhere, I've always loved this song.

Can't seem to stop playing factorio, send help.

The factory must expand.

The factory must expand.

The factory must expand.