It is inevitable that those to whom is vouchsafed a long life of usefulness should outlive the friends of their youth.
A poem records emotions and moods that lie beyond normal language, that can only be patched together and hinted at metaphorically.
Well, I had a lot of help from my father with the soldering and so on, and he was very good at math and was fascinated with computers, and so I was fortunate enough to have a bunch of exposure going all the way back to high school - this was in the 1960s.