I can still dig a house foundation with shovels, does that mean they aren't obsolete and we should stop using hydraulic diggers?In general yes but not when talking about becoming obsolete fast or not, I took obsolete has meaning:
: no longer in use or no longer useful
Which sound a really strange to say about something like a 2500K, that it became obsolete almost at launch (I am still using mine 4c-4t of that era in a server right now).
Looking at benchmark between a 2500k a 2600K for game of the time I am still not convinced.
P.S. Not using a CAD, making a CAD, multithread performance changed thing by a giant ridiculous factor (I would imagine maybe has far to say has 6 to 11 time faster for some things) when he went on a 3700x, it was just to point out that it was a CPU that lived for about 10 year's even for people that do a living on their PC, which is all time high historically speaking not short living.
Not one was programming in 2000 on a 1990 even high end cpu, it was a particularly long living generation of processor.