I suppose the paradigm for aging engineers like me would be "crumbling dock" rather than "T shaped": Quite a bit of breadth, with depth in various places, excep

I suppose the paradigm for aging engineers like me would be "crumbling dock" rather than "T shaped": Quite a bit of breadth, with depth in various places, except that when you rely too much on it, you may find out that some of it has rotted away in the mean time.