Earlier quoted context omitted.
it ain't that hard, and it actually makes sense. i can take a look in my own family and it's apparent. answer is - we became lazy, so slowly that many actually think that nothing changed. sample job you mention - carpenter now doesn't do as much physical work as he used do do 500 years ago. the ones who don't use modern approach, they are skinny, muscular athlete-looking types, even if they are 50-60 years old. most…
I'm not talking about 500 years ago, I am talking about 25 or 50 years ago.
computers in one or other form, albeit amazing, also got us move around much less. people are happy they can regulate lights from their cellphone, rather than getting up and walking those 3 meters...