@kaia @thor
To be more precise, the problem with ADHD is that there is a lack of "extrinsic motivation". He even shows a perfect example at 24:00

What he is showing is that an ADHD brain is actually processes the information purely on the intrinsic motivation. If the ADHD student does not feel the importance of a task, his brain will filter it out completelly, and jump to nearest thing, that does have a meaning.

That is why I had no problem getting to university, studying, and even getting a job, but finishing the school became near impossible the moment it was no longer necessery. Another example was mentioned before about how ADHD kids don't learn by being told what to do. Well, obviously. Because a teachers word has no value unless it is directed at truly explaining the new values.