They are not the same thing, of course. I was just saying they can both have the problem of focusing and finishing tasks in class as you mentioned. And they can

They are not the same thing, of course. I was just saying they can both have the problem of focusing and finishing tasks in class as you mentioned. And they can also both have bouts of productivity as the article mentions. I think the article could easily be talking about either, or any other host of things that make learning harder. I know quite a few people with one or the other. The feeling of being overstimulated is one of the ones that ADHD and bipolar disorder often both share. Someone who is manic can feel like their thoughts are racing, like there's so much they should be doing! So it's hard to focus on what the speaker is saying. Someone with ADHD can feel like there's so much other more interesting stuff all around them constantly, and their thoughts are wandering over to that song they heard earlier. So it's hard to focus on what the speaker is saying. Different lines of thought, but the result of "not listening" is the same.