>>For job like programming or CEO, I kind of think that 70 year olds can do better than say 20 year olds.
Maybe in 50 years, but currently I'd say a 20-30 years old is the prime programmer age. Young people tend to learn new tech quicker, and be faster/more efficient at typing and using computers.
A 53 year old who has been programming for 30+ years is likely to be a good programmer because they managed to keep programming for all those years. How many of the less-talented people you started out with are still programming?
But I do agree that it without hard evidence, it's unfair to assume older programmers are slower or less capable. I have personally worked with some exceptional older programmers.
...typing and using computers? So you're comparing 20-30 year old programmers with 40 year old people who aren't even comfortable with computers? Yeah, I'd say apples are way better than oranges.
Maybe in 50 years, but currently I'd say a 20-30 years old is the prime programmer age. Young people tend to learn new tech quicker, and be faster/more efficient at typing and using computers.