On the last bit, perhaps these people are just better developers than me or perhaps it's an artifact of the sort of things they work on vs what I work on but I

On the last bit, perhaps these people are just better developers than me or perhaps it's an artifact of the sort of things they work on vs what I work on but I can't think of a single thing I could complete in a couple of hours which I'd be proud enough of to show as an accomplishment. I see a lot of these interview discussions talking about having candidates bang out real features in a couple of hours and I just don't understand how that's possible.