I've read articles like this since I started working in silicon valley in 2012, but I haven't seen it in person. Maybe some selection bias at play, but I'm generally pretty open.

Stuff I have seen:

- LSD usage is pretty common relative to where I grew up (midwest-ish), but usually rare (once a year, burning man, someone has tried it once) even so, I'd still guess this is a pretty small minority - I guess 15% max? I'd guess mostly this is curiosity driven, reading about it, etc. I've never seen anyone seriously use it as a productivity drug.

- Adderall is more common, but that's because it's prescribed (and it works well so everyone thinks they have ADHD if they take it) - I haven't seen it abused, I've heard people talk about modafinil but have never met anyone that was actually taking it. Even in the adderall/adhd case, I'd guess 20% max? Most people I work with do not take it.

- Ketamine I don't know anyone that's tried it beyond someone in the therapy trials and non-techie druggie types.

Maybe it's more common and I'm not in the right circles, but I don't really buy it. I think it's rare and elevated by articles like this because it's salacious not because it's common. I'd guess my made up percentages are also too high.

Personally, I haven't witness any drug use in the various developer circles I've run except for ADHD meds. The number on ADHD meds is somewhere around 5-10% I would guess...

In the Bay Area, I'd suspect that the number using weed is way higher.

I'd guess 10% at most, but probably less (on a semi-regular basis, number for those that have ever tried it is higher).

There's strong selection bias with drug use because drug users tend to cluster together, I suspect it's a lot less common than people think.

> I suspect it's a lot less common than people think.

Demand is not what the weed industry thought it would be.[1]

[1] https://www.foodengineeringmag.com/articles/99944-price-per-...