Napkin math sure, but not at its worst. It's just an very rough estimation with explanations for numbers given and not claiming to be exact. I think the most va

Napkin math sure, but not at its worst. It's just an very rough estimation with explanations for numbers given and not claiming to be exact. I think the most valuable lesson here is that it's likely to be in the ballpark of millions of dollars and that in theory its possible to do it for $27.2 million.