It seems a little weak to me too. But I think it's one of those things about degree of behavior. My kids would enjoy flipping lights on and off at that age too,

It seems a little weak to me too. But I think it's one of those things about degree of behavior. My kids would enjoy flipping lights on and off at that age too, but only for a few minutes, or with breaks every now and then. I've had some limited exposure to kids with autism, and I've seen them happy to do things like this for hours at a time. Since it was specifically called out in the article I'm assuming it trended toward longer periods. That being said it's a generalization and like (basically) everything having to do with autism, generalizations only apply to a very limited set of the population, and can be difficult to distinguish from stereotypes. Also, obligatory, #IAmNotADiagnostician