I'm not the person you're responding to, but it is a very interesting question. "Modern" life isn't even ubiquitous, and being in my 30s living in a large US ci

I'm not the person you're responding to, but it is a very interesting question. "Modern" life isn't even ubiquitous, and being in my 30s living in a large US city on the upper side of middle class definitely alters my own perspective of "modern", but I cannot imagine life without cellphones, internet, all food being grown/hunted/processed by others (unless for fun) as modern. Living in a city that has plumbing is probably not something most of the world has even now, but to think that "up until the middle of the 19th century, people were still doing their business in pits, outhouses, and, of course, chamber pots" seems crazy to me, and I would not consider it "modern" whatsoever.