This is only the Time Traveller's theory. Note the last two sentences
below:
'So, as I see it, the Upper-world man had drifted towards his feeble
prettiness, and the Under-world to mere mechanical industry. But that
perfect state had lacked one thing even for mechanical
perfection--absolute permanency. Apparently as time went on, the
feeding of the Under-world, however it was effected, had become
disjointed. Mother Necessity, who had been staved off for a few
thousand years, came back again, and she began below. The Under-world
being in contact with machinery, which, however perfect, still needs
some little thought outside habit, had probably retained perforce
rather more initiative, if less of every other human character, than
the Upper. And when other meat failed them, they turned to what old
habit had hitherto forbidden. So I say I saw it in my last view of the
world of Eight Hundred and Two Thousand Seven Hundred and One. It may
be as wrong an explanation as mortal wit could invent. It is how the
thing shaped itself to me, and as that I give it to you.'
H. G. Wells . The Time Machine (Kindle Locations 1949-1961). VP
Classics. Kindle Edition.
--
Jerry Brown
A cat may look at a king
(but probably won't bother)