I work at a huge tech company.
In my org of 100, the rough breakdown is like this:
70: IC under age of 40 25: Managers, mostly over 40 5: IC over 40 (all are principal)
I know people say that as you age, you move to management or principal. But the math doesn't check out.
In my scenario, if we broke it down like this - 30 openings for traditionally "over 40" roles - 70 people that will eventually be "over 40"
70 people - 30 openings = 40 people without jobs
Where do they go?
Other, less trendy companies
Given the computer boom we've seen for the last 40 some years, I imagine a good number of them are retired. A lot of people in that age range could have realistically even retired back in the dot com bubble days.