Cognitive decline starts a lot earlier than 70, reflexes start getting worse after 25, other cognitive capabilities decay later on in life

When does age-related cognitive decline begins http://www.sciencedirect.com/science/article/pii/S0197458009...

White matter damage on diffusion tensor imaging correlates with age-related cognitive decline http://m.neurology.org/content/66/2/217.short

Evidence for cortical “disconnection” as a mechanism of age-related cognitive decline http://m.neurology.org/content/57/4/632.1.short

I can't believe I'm being down voted for this. Is like when someone says males have naturally more upper body strength and then some feminists get mad, even when is written in a biology study about musculature.

This obsession for political correctness is corrupting scientific knowledge and research.

You're being downvoted because you're hyperfocusing on one dimension of people.

That 25 year old will expend many neurons and lots of that fresh cognitive capability on waste due to inexperience. Have you ever met a practicing 70-year old engineer? That perspective and experience has an outsized impact.

The male vs female upper body strength thing is totally different. For one, it's measurable. Second, it's not a job attribute that is offset by expertise -- a firefighter has to be able to carry an average sized person or a roll of hose. 30 years of hose carrying doesn't make it lighter. Usually, fire departments recognize this by allowing fire fighters to retire starting at the 20 year mark.

I know what you are trying to say, but I have known engineers in their 70s who have a really hard time grasping new concepts, we should be good with each other and nice with each other, but sometimes that is not in line with how the market/capitalism works. I don't think I was completely right but I don't think neither are you.

Brain plasticity is a real thing, and it goes away really quickly, is depressing but is a reality, I'm 27 but I already feel my reflexes are a bit worse than when I was 24, here is a nice video that gives some perspective about the issue, you may have seen it before (reverse bicycle): https://www.youtube.com/watch?v=MFzDaBzBlL0

It's easy to see why you are being downvoted. You precisely expressed the essence of discrimination and then defended it exactly the same way people always justify not hiring _____ race/class/gender/etc.

Diversity requires you change how you think about talent and work. Change from 80lb containers to 30lb containers and then you can hire people with less upper body strength while reducing injuries.

I know what you are trying to say, but I have known engineers in their 70s who have a really hard time grasping new concepts, and your splitting weight analogy doesn't cover such things, you can't "divide a concept".

Yeah, we should be good with each other and nice with each other, but sometimes that is not in line with how the market/capitalism works. I don't think I was completely right but I don't think neither are you.

Brain plasticity is a real thing, and it goes away really quickly, is depressing but is a reality, I'm 27 but I already feel my reflexes are a bit worse than when I was 24, here is a nice video that gives some perspective about the issue, you may have seen it before (reverse bicycle): https://www.youtube.com/watch?v=MFzDaBzBlL0

Or better yet, let the robot engineers do their job so we can have robots do those mindless and repetitive jobs.

Moves like this signal to me that Google is dying. I, for one, will shed no tears when it finally kicks the bucket.

> cognitive decline is inevitable in 70 year olds

This was not the claim, you added "inevitable", thereby diverging from a statistical claim to an absolute strawman.