Everything that exists in reality, from the observable beginning to the projected end, follows a pattern of abstraction that is exact and single. Drugs give you access to "suspension of disbelief" in experiencing fiction that is larger than reality.
> Like not being able to hold a thought for more than 5 seconds.
Not really an effect of cannabis. Heuristically it's more like the opposite, focusing on one thing for hours. The same way people with ADHD take Adderall.