My 'career'-First one: Lives still; we converse periodically. Such a Pleasure to retrospectively fill-in-blanks ..not even sotto-voce addressed way. back.

The largest pleasure--of course--is in being able to express my gratitude (that He was the luck-of-the-draw from many angles). And while his 90+ voice has its hesitations--offer him unvarnished truthiness: his brainz are decidedly Not-hors de combat. And: to be sure that this is not at all flattery (aka: "your friends won't tell you, but ____)" ..is sometimes the Best [+]

(One Saturday we converged at lab; he brought a bag o' parts; we built a working FM receiver: best-way to grok to fulllness what [a cheap "slope-detector" is] -vs- more elaborate ones, thus: how cheaply you could .. Make yer Own FM-receiver! ... umm, this was when FM was burgeoning ... killing off, ever again trying to get decent music-grade reception via AM == static-full, amplitude modulation. A significant 'plank' in my brain-switch from chemistry --> physics.)

Lucky, lucky.