@maniacalmanicmania I think it’s become a lot longer over time.
Back in the '80s and '90s, one computer year was maybe 30 years if you were lucky.
If you bought a 486 with VGA and Windows 3.1 in 1992, by 1995 it was completely obsolete. Time to get a new Pentium with Windows 95.
And by 1998, that shiny new Pentium would be far too slow to run many of the programs you want.
Now? It’s probably around eight years to one human year. If you got a laptop in 2015, you’d just about be getting to the point you’d probably want to upgrade it now.
I have a 2014 XPS 27 aio that’s still going fine for light work, so by your math it’ll be about 80ish in human years this year. I wonder if I’ll start treating it any differently knowing this. I should apply some thermal paste some time, it’s been six or seven years since it had a new coat.