I don't think it's the normal state for most humans, but it is descriptive of one end of the spectrum of normality, when testing for a limited set of properties

I don't think it's the normal state for most humans, but it is descriptive of one end of the spectrum of normality, when testing for a limited set of properties. That's why I'm opposed to people medicating for it generally. Basically it's "people who have trouble motivating themselves to do things they don't really want to" (though may think they should). It can be inconvenient if your view of society is that smart people should be interchangeable. My personal belief is that this is just friction between relatively recently evolved (post-industrialization) social norms and the way that people actually work, and those two pieces not fitting together all the way down has been labeled ADD (among other things). To put a very fine point on things: what some people call ADD is why I am a founder. I could probably medicate myself into being a contented employee of a "good" company and stay there forever. But honestly, fuck that. I don't feel like getting shifty when things start boring me -- usually every 3 to 4 years -- and needing to do something else is a disorder. My best friend on the other hand lives in the US and takes amphetamines for her ADD. I hear her describe what she struggles with and can relate to it, but what I hear is, "Wow, she really hates her job," rather than, "Wow, she has a hard time focusing." American psychiatrists apparently disagree.