If All Else Fails, There's

Electronic Distribution Is More Of A Fall-back Strategy For Putting Out A Book That Isn't Deemed Profitable Enough To Print. You Hardly Make Any Money Publishing An Electronic Book.

A Computation Is A Process That Obeys Finitely Describable Rules.

Traditional Science Is All About Finding Shortcuts.

Our Bodies Are The Time Machine.

Science Fiction Writers Put Characters Into A World With Arbitrary Rules And Work Out What Happens.