Welcome to the List.
The Big Brothers of the List tend not to dwell on civilities before they
treat you to how dangerous it is to have your own thoughts on any
subject they fancy themselves experts.
Welcome.
I agree with the gist that you posted on Petersen's book. Unlike you,
there were some parts that went over my head before the appendices.
Would you be willing to go over those parts with someone (me) not as
swift as you in math and physics?
You are a breath of fresh air.
Joseph Mastropaolo