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by loup-vaillant 5483 days ago
The question wasn't about finding out if older programmers are better, but if programmers get better as they grow older.

Measuring the latter in terms of the former is highly prone to the survivor bias. The OP's data is evidence in favour of progress over time, but it's weak. Now, progress over time doesn't sound like such a silly idea, so even weak evidence counts for me.