The horse population has decreased by half or so since the early 1900s. And horses have stayed pretty valuable, too. Most of them just don't have to work as hard anymore. The horses used for sport never went away, only the horses used for labor or transport. So if your horse analogy is accurate, then maybe half of software engineers lose their jobs and the industry stops growing. Those that keep their jobs keep their salary and have to either be very fast or very good at jumping over artificial obstacles. Seems accurate. I should probably stop beating a dead horse.