There is frequent mention of the need to cater for cognitive disablity, but no link to the example guideline site. Where is the mention of cultural artifact. Some of these concerns are cross-media. People with physical disabilities might not be able to move quickly or accurately enough to interact with moving objects. Moving objects are better able to provide a context.
Scroll bars are a complete barrier to many.
7.1,7.2 excellent Perhaps mention should be made of the need to provide programmatic movement through a site with a speed control. The porisma or corollary is that we MUST provide visual content that is equivalent, and this is very much more time consuming and difficult. This rather brief in comparison and does not discuss the inherent difficulties, it is certainly not rated a 'must'. This is hardly encouraging, a picture tells a thousand words, in many cases pictures are a huge benefit. People with cognitive disability make extensive use of this ability, in order to navigate the real world.