(...) additionally a lot also depends on criterial validity (does a test actually measure what it's supposed to find out): you can perform quite well in a vocab test when you study hard, but that doesn't mean you can actually produce one single correct sentence in English!
I agree with you. I could talk about school system for hours, mostly about the one in my country (compared to other ones), however it is not the main subject of this thread
you are even better than RAM cause upgrading only costs time and no money!
Gonna speed up my brain frequency from 400 to 533Mhz before going back to courses
...and you'll never have a problem with incompatibility due to new socket standards.
I can't agree with that point, there are plenty of people who do not have the good socket fully compatible with the now reality.
Nevertheless, if you talk about internal body incompatibilities there can be an exception: transplants