There is actually a book titled “Fermi’s Solution.” Read it.
There is a cartoon with the caption (more or less): “On the Internet, no one knows if you are a dog.”
Saying you have 40 yrs experience in engineering means nothing. If you know your stuff, you can talk “turkey”.
Go home and do the homework. Laziness is not tolerated.
I requested that you explain it to while at the same time acknowledging that I don't know it all. Please explain it to me and we can 'talk turkey'.