[SirMaster]

I guess my definition of what makes a sustainable career does not at all need to include "being in insane demand", or "commanding outsized salaries and crazy perks".

Maybe the question is being asked by people who got into this industry to get rich or something, I don't know.

I got into it because I love working with computers and making software and it seems to pay fair enough for me. I don't see any shortage or work or opportunities to make software and make more than enough money to live a comfortable life.

To me that is a perfectly reasonable definition of sustainable.