This still doesn’t explain one of my biggest peeves with keyboards:
Why are the keys angled up and to the left — for both hands?
Was this to solve the type bar jamming?
Or is that also an urban legend?
I know there are modern keyboards that solve this, by either splitting the keyboard and angling in the natural direction of your fingers (so to the right for the left hand, and vice versa), or just ortholinear keyboards that have straight rows of keys (but still angled ergonomically).
But that ridiculousness has lived on, such that even “economic” split keyboards will still angle both sides to the left.