It's OK to respond! And yeah, it was pretty intense (also talking about other deaths and funerals).

What's weird is that he said that if something happened to him, the email announcing it would come from his regular account (via his wife sending it). I wonder if he has a draft saved or something? But now I feel I'll panic if I get an unexpected email from him with a weird subject line (like "Update" or something). I asked if it was possible to have his backup T, R, inform me instead, but he seemed unsure. He said she would be notified, too, and he figured I would reach out to her to talk.

And Dr. T is 20 years younger than L. But you never know... I hope they'll both still be working when they're 100! Or at least still around and of sound mind and body. (Though...I hope I'm not still seeing Dr. T if he works that long, as that would be like 50+ years! He'd get a very nice anniversary gift then...)