Wow Eben, that is very cool! Even the CEO's of big companies have time for nostalgia. Reminds me of the time I wrote JYC when I was about 8 and said I wanted to go on one of his diving adventures. He wrote me a very nice handwritten letter back and said he was making me an honorary member of the Calypso crew!
"The diver who collects specimens of underwater life has fun and becomes a keen underwater observer. .. seek slow-moving or attached organisms such as corals, starfish, or shelled creatures." (Golden Guide to Scuba Diving, 1968)