I apologize, I should have been more specific - OS X operates on post-PowerPC Apple hardware just fine up until the 64-bit requirement, but Windows 10 runs on hardware dating as far back as 2003 - see http://www.techradar.com/us/news/software/operating-systems/... for specs.
So then, to extend your original comment... "You also can't run new Windows operating systems on old hardware."
There's going to be some point where old hardware will cease to run the latest OS... wherever the OS makers decide to draw the line, the line WILL exist, so it's not a valid argument for or against, it's just... a fact.
There's going to be some point where old hardware will cease to run the latest OS... wherever the OS makers decide to draw the line, the line WILL exist, so it's not a valid argument for or against, it's just... a fact.