I think his point was you don't to be "entrenched" in an old stack.

How "nimble" your mind is really isn't important, and surely you don't think that a 15 year old can be more competent than you in a given stack.

It's just that you're not exposing yourself to the new stacks.

If it was my job to penetrate remote systems, you can bet that I wouldn't still be using the same stack and MO I was 30 years ago, in the just the same way that I'm not using an Amiga.

The OP is ridiculous that it cannot be imagined that someone needs to be a child to break into systems.

I'm at University and I run rings around my 20 something cohort.

The point is not that one needs to be a teenager ("child") to break into systems. None of what I have said is incompatible with the assertion that older coders have more skills, a point with which I agree. However it is not a contradiction to say that innovation does not require huge experience, and indeed is sometimes hampered by it.

I still stand by my original assertion :

> because greybeard's IT stack and MO is entrenched, conventional, and defendable-against

this is utterly ridiculous

I stand by my original assertion:

> this is utterly ridiculous

A vacant comment devoid of insight, by a self-satisfied person oblivious to their predisposition to complacency.

our HN colleagues think otherwise