It seems like it’d get increasingly impractical as the years go on to hundreds of thousands and millions of years to write them out that way, but then…I guess technically one may already do this with the preceding years, so future’s fair game for it?
I’m pretty sure all operating systems have long ago switched to 64 bit date times. Of course, just like y2k, it’s the apps and their shortcuts that will be a problem.
There has to be millions of IoT/embedded crap that runs some long obsolete OS version or whatever. Consumer stuff indeed shifted a looong time ago.