If a disordered desk signifies a disordered mind, what does an empty desk signify?

Don’t take this too seriously. It’s just a bit of fun.

William F. Buckley's desk

William F. Buckley's Desk

And…

Nat Hentoff's desk

Nat Hentoff's Desk

And…

Albert Einstein's desk

Albert Einstein's Desk

And…

Barack Obama's desk

Barack Obama's Desk

Have a better caption than the one I put in the title? Add it to the comments, please.