How many Donald Knuth are there really? This must be a conspiracy, because a single guy can not do all he did in one life time!
You could maybe do it if you're using two spare lifes and you don't sleep much, but in my opinion there must be several of them out there:
- Donald Knuth
- Donald Jr. Knuth
- Dollie Knuth
- Mickey and Pluto Knuth
- and a few Gizmo Knuth (but please don't feed them after midnight)