Ugh. Really off this morning and for a few minutes this was posted to news. Anyway this is a topic that has come up every so often not only with her kids but back when she was just drawing about herself. I wonder if the swinging arms is intentional given the quote about freedom ending when you make contact with another.
You’re asking for a ridiculously exact quantification of a very subjective matter. I hope you did it as a joke, or are planning to revolutionize math with the impossible knowledge acquired.
If you were serious, define your personal space, and look if it makes others uncomfortable. Adjust accordingly for each individual. Your friend will likely have a different tolerance than a restaurant waiter, for example.
that is the point. have you read through the various commentary. several people came onto the thread. Anyway my end point is its subjective and thus complicated.