I should think that a set of manually entered
bootstrap instructions
(i.e., not on a diode ROM board) would take considerably longer than
5s. ;)
I feel fairly sure you overestimate either the length of the bootstrap
or the per-word time required.
I once used an HP machine with a front-panel-buttons bootstrap. It was
only some four or five words long, and after entering it a few dozen
times I feel reasonably sure I could enter it from muscle memory in
well under a second per. (Weasel words are because this was in the
late '70s and the memory is now rather fuzzy.)
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