You're missing the forest for the trees. Horse population today is in line with the long term average. There was a freak bump from 1850-1920. Think about this

You're missing the forest for the trees. Horse population today is in line with the long term average. There was a freak bump from 1850-1920. Think about this question: is it harder today or 200 years ago for the average person to learn and ride horses? Same goes for craftsmanship: is it harder today or 200 years ago to find some highly skilled craftsman to do something a random people or organization might fancy getting done? And software. We may be in the freak bump of software engineers. Seven digits seems like a good guess. Maybe we will revert to a long term average proportion of people with affinity for math and logic. But you bet your horse (heh) that in 200 years it will be far easier for the average person to find some highly skilled software craftsman to do some niche work than it has ever been. Average quality of corporate slop generated by flesh or silicon drones notwithstanding. Society and the economy will go on growing more complex. Whatever anyone can picture or design in their heads about the reality of things can never approach the real world complexity and variety. And by whatever metric you may choose, the complexity and variety of skills and capabilities in human civilization will go on growing.