it's in my users name: Germany.

To be a little critical about it, my husband, who smoked a lot of weed in his younger years told me, he was not very productive. There is a difference between feeling inspired and motivated and then actually get into the state of creating something. He told me, when they were under the influence of smoking, they thought what they had done that evening in forms of music or other material accomplishments, the next day it turned out to be crap. LOL

I am not saying that nothing can come out of it, maybe not so much under the immediate influence, but maybe after the effect had disappeared. I would not limit it in general, though. Who really knows?