I was surprised about vi going in, though, I didn't know it was in System V.
I think multiple levels of undo would be wonderful, too.
Not all smart people work at Sun Microsystems.
A bomb is blown up only onceโbut one bot can become many, and quickly get out of control.
Take responsibility for the things you build and invent.
You can drive a car by looking in the rear view mirror as long as nothing is ahead of you. Not enough software professionals are engaged in forward thinking.