Being high on weed just cannot be compared with having AS/HFA. It can only be compared with other drug-induced states (transitory in nature), whereas ASDs are different, permanent neurological make-ups.
Weed is one of my special interests. I love it because it makes me feel different than I normally do. To me, it's another space of mind, in which I have a new and deep appreciation for the world. If anything, it makes me more NT-like, as I get more empathetic and I understand better metaphors and symbolic stuff. On the other hand, it also increases some of my Aspie traits, as I get to be more quiet and withdrawn after I smoke, even when in a group of friends.
I think it's normal for NTs to understand you better when stoned, after all weed heightens their empathy too...
However, there is a similarity. Weed does impair executive function, so stoned NTs get to have the same attention span as ADHD or AS people. That is true. But neither ADHD, nor AS are reductible to executive function deficit only. Hence why I'm saying comparison is impossible...
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Probably 75% Aspie, 25% NT... and 100% ADHD
Aspie-quiz results:
Aspie score: 138 of 200 / NT score: 78 of 200 => Very likely an Aspie.