>>whether you'll find that same level of call it "computing aptitude" in domain experts, or whether we've successfully sorted most of the people with an aptitude for programming out of other fields already.

That could be. but once there were people who had an aptitude for Morse Code. The argument might have been that communication across distance is a professional task best left in the hands of the career experts. I won't bore you by carrying the example to its obvious conclusion. ;-)

Some complexities are imposed on us by God or nature or the Fates and some we create on purpose. Complexities we create include accounting rules, governance, taxation, civil law... lots of areas where complexity is regularly constructed on purpose, creating career opportunities for some. Tech might like to move in that direction, but with no significant barriers to invention and creation of alternatives it's a short-sighted view IMHO. The market can shed its dependency on unnecessarily complex tech as easily as it shed its reliance on Morse Code or the telegraph or even the fax.

Morse Code operators might be wise to consider setting up a telegraph school followed by a fax bureau followed by a cellphone depot rather than insisting that the complexities of Morse Code mean that morts can't do it themselves. JMHO.