To be fair, as someone who's been at Google for ten years, you sound pretty senior. From what I've seen, I think there might be significant sample bias. It see

To be fair, as someone who's been at Google for ten years, you sound pretty senior. From what I've seen, I think there might be significant sample bias. It seems that most people who use/abuse drugs are much younger, and often don't talk about it with people outside of a small group of similar users. I've definitely heard, known, or been close to people using at work, at home, with everything from speed, weed, and microdosing LSD, to modafinil and Adderall (in a non-prescription context). By the time they get older, I imagine they'll either have stopped, or burned out (as I've already seen) and likely wouldn't end up at more structured companies like Google.