TL 9 microchips?

[Celjabba]

Originally Posted by RyanW

And didn't an IBM engineer claim in the 1950s that six (or some other comically small number) of their latest computer would have all the computing power the world would ever need?

IIRC, the actual quote was "we expected to sell 5 of those" and was followed by "we sold 20"

And it wasn't that they tough their latest computer would have all the computing power the world would ever need, but that for the use they were thinking of, there wasn't need of more at that point.
They did not foresee in how many way computer could be used, or especially personal computer...