you'd really like my daughter, ted. she picked up my habit of telling my wife "it's your DNA" when she's misbehaving. i used to say that as an aside. now she'll just point at whoever is telling her to calm down and say "it's your dna."
if you tell her that it's not funny, she has a really great, oscar wilde level response. "yes it is."
the other day she bounced this light ball (like a beach ball but a little smaller) off of the cat, and the cat attacked her, and then she came complaining to us. i think we should let the cat do more parenting.
she knows the cat pretty well. sometimes she'll push the cat just so far, and the cat will give her the look and she'll jump back because she knows what that look means.
@Alexandru Yes, I skimmed it. There's just no differential geometry there for me, other in equations in section 2 which you're just quoting from other sources. But I'm glad for you that you completed this work!!!