Janis Joplin commented on this effect. The user may have all kinds of plans and things to do and the energy level to do it, but just sits there immobile until it wears off.
Thanks. As I said, I have no personal knowledge of any of these drugs, but that was certainly the impression I had from what information is available. Those representations of crack houses, for example, have not shown the users dancing around having a generally good time and ready to go out and take on the world.
That's the way acid is. Your mind is itching to do a zillion things but you can't manage to get it done.