[boredmgr]

Thanks for the comments. The last 2 statement "you can't go back to entry level" and "biggest hedge against this is make sure always have a foot in some other tech" seems to be a bit contradictory. Pardon me if I have not understood it clearly. But if someone is not able to go back to entry level then how can they have foot in other tech?

[legitster]

Even if you are an expert on X technology, you can still apply yourself to learning Y by involving yourself in projects that feature it.