Whether it is a cognitive disability is not a useful question; the question is whether there is something that is cost-effective to offer to these people.
My main point was that having this situation is not incompatible with being on LessWrong.
About cheapness: you oversimplify. A good recorded video lecture requires noticeably less effort to produce than a good textbook. And even simple lectures for big audience are quite good w.r.t. scalability.
Whether it is a cognitive disability is not a useful question; the question is whether there is something that is cost-effective to offer to these people.
My main point was that having this situation is not incompatible with being on LessWrong.
About cheapness: you oversimplify. A good recorded video lecture requires noticeably less effort to produce than a good textbook. And even simple lectures for big audience are quite good w.r.t. scalability.