I think fax machines were invented for the military........
No... the military used what was called radio teletype. But they did use a print-out similar in poor quality (dot matrix) to early thermal fax machines. But it was very high-tech... and the security was so good
it's still classified. ........ It was nothing even near photocopy technology.
Fax machines are merely (cheap crappy) photocopy machines separated by phone lines. But the concern of marketing a copier that could be used over distances was that companies would centralize (
continue to centralize) print operations in the print shop. Whereas copiers would be placed (several of them) in various offices and departments throughout the company.
AND.... that is really the topic I'd hoped for. The human paradigm is what often stalls or inhibits progress.
IMHO... every new gadget (particularly electronic, computer, internet....
or AI) is a potential boon to Home Automation. Heck.... the best advances to HA could have been introduced months ago. But the way humans naturally organize thoughts prohibits us from seeing the new potential and possibilities....
in many cases. I just believe if we force ourselves to think out of the box and actively look for new ideas..... we will find them.
P.S. I worked in a message center and was a radio/radio-teletype operator (even ran one on a
577 on occasion. Very high tech stuff half a century ago.