Both my parents died in the early 80's; around 40 years ago.
During those 40 years, so much has changed of which they would have been astounded; as often am I.
They never got to see the computer revolution. Laptops, digital cameras, mobile phones, etc, all had yet to be invented, and my mother, I'm sure, would have loved them all. Father would probably have found it all 'soppy nonsense'.
It's amazing how much we now take for granted. In my mother's day, had she wanted to send a photograph to Australia, she would have had to first take the photo, take the roll of film to Boots, wait for a week for it to be developed and printed, put the picture into an envelope, buy the stamp, post it, and wait another week or more for it to be delivered to Oz. From photo to delivery would have taken a minimum of two weeks, if not a lot more.
Now I can do the whole operation in a matter of seconds. Not only has the whole process quickened, but the quality of the photo has also improved dramatically.
No longer do I have a pile of reference books by my side (other than a Thesaurus and a Latin dictionary), as Google will supply almost any information I require. I no longer go everywhere with a lumpy 35mm camera. And letters are hardly ever written; not even Christmas cards.
Cheques have almost disappeared; as has physical money! Banks are closing by the dozen, and we have all become our own cyber Bank Managers.
My people did, of course, manage to avoid the disastrous foreign policies of Bush/Blair and all the ensuing slaughter and fleeing of refugees, the crazy rise in the price of UK property, and the current panic surrounding Covid-19 et al. They also missed Trump, Jeffery Epstein, and Brexit, so not all has been bad.
I now wonder what the next 40 years will bring. I won't speculate, just pray that it will be healthy and peaceful. The world desperately needs a period of calm, and some better leaders; but I suppose that's up to us.