Computers could be good, but they aren't.
That's the gist of it.
I guess I mean Good with a capital G, as in "a force for good in the world", but I also mean good with a lowercase g, as in "not super shitty to use, or think about".
I'm not going to waste a lot of bits talking about how computers are bad. I've done this a lot before, and you probably already agree with me. I'll quickly summarize the high points.
@ajroach42 In retrospect, one of the most regrettable parts of the "PC revolution" is how much wheel-reinvention happened due to disconnects between large systems people and micro/PC people.
E.g. the high watermark of hardware-enforced security in operating systems is arguably still Multics…developed 1964-67. Just one example.
So much knowledge from the development of large multiuser systems was ignored or not known to PC developers, and we now live with the consequences.