Knowing a well-known judge's curriculum vitae doesn't give somebody who knows how to use a search engine a "law background."
And no, your point about calculations is not the slightest bit valid, unless you imagine that a pilot calculates a bug speed by saying, "Well, I think it was about eight hours since I used it last, so it's probably still good."
By the way, will you please figure out how to spell Junior and correct your handle?