Read what any of your favorite musicians have to say about it. Check the science and testimony on it enhancing creativity and sensory experience, helping people see see themselves and the world from a new perspective - introspective development.

You know, the same sort of introspection that might make one wonder if your statement above says a lot more about you, and your values, than it does about cannabis enjoyers.

https://thereitis.org/mr-x-by-carl-sagan/

He originally wrote about it under a pseudonym for fear of professional consequences. Many such cases.

Yes, I know some of those. But usually they are either very light users or they achieved their success before becoming heavy users.

I also know some pretty heavy users that are adamant that they are doing better than before but their environment does not usually agree. This is a thing that is fairly common with heavy drug users though.

Hey buddy

I know lots of people that smoke heavily and I've watched their trajectory over decades. It's a sad story really. I'm pretty sure if you manage it responsibly the benefits may well outweigh the downsides but over the long term it really adds up.

Of course, everybody ages, and people are not usually as sharp as they were in their twenties or earlier. But given that I also have access to a sizeable control group where I don't see that effect I figure it has to have some factual basis too large to be just handwaved away.

Feel free to correct the fact that we haven't met in person by the way, you & yours are always welcome here.