I've heard this sentiment occasionally and I've actually done some introspection about it. What's the earliest time of human history I'd have to be born in, to

I've heard this sentiment occasionally and I've actually done some introspection about it. What's the earliest time of human history I'd have to be born in, to feel alien in our times? There's actually a surprising answer to this, and it's not even subjective: there is a lot more difference between my grandparent's house in the countryside 40 years ago and current times, than to pretty much any agricultural period. No running water, outhouse was... out, no TV. And in _their_ childhood it was even more barebones: no electricity, phone or radio, nor cars or trains or asphalt. So... would my grandparents feel alienated now? Hell no! My surviving grandma is complaining about constant pain and ailing vision, not that things are too strange. She needs somebody else to call me or show her pictures I send on whatsapp because she can't physically use a phone anymore, not because she can't adapt to it. There is some truth in what you're saying, but it's due to something we don't like to talk or think about: dementia. Not just Alzheimer, but dozens of ways the aging brain is deteriorating. Fix that, and suddenly you'll find out that old people aren't children anymore, and are perfectly capable of adapting to the new.