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Re:Age and cognitive skills: Use it or lose it by BeetleB on Thursday March 06, 2025 @02:20PM (#43284089)
> But being able to solve PDEs reasonably quickly and accurately, I cannot, or have not without a great deal of practise.

No one - young or old - does well in math without a great deal of practice :-)

Re:Age and cognitive skills: Use it or lose it by JadeNB on Thursday March 06, 2025 @04:05PM (#43285073)
A related ancient XKCD with a slightly different take: https://xkcd.com/447/