On the subject of breakthroughs – see previous blot – I ran across this [Link]
and realized that I wrote my thesis before desktop computers. So step three was me writing out the draft by hand – YEA CURSIVE! – and then keying masters on an IBM Selectric typewriter-machine.
Life was easier and harder back then. It was harder to build the keyed output; it was easier to get away with glitches. (There was a campus myth about a nasty committee member who got a manuscript enema.)
Also got my name added to an obscure (one can even say transparent) bit of physics.