I found, in reading the article, that accessibility guidelines are workable/applicable/adaptable in/for many contexts. Ensuring accessibility does not always have to be costly or time -consuming, but it definitely does require a strong sense of our duty of care towards all our learners. It also requires innovative thinking, and a willingness to use simple but efficient techniques over complex, expensive ones. 

I found that this article provided a great deal of information on how to ensure video learning resources are accessible to learners with impaired hearing. I do feel that more can be done for those who have vision impairment. I'm also curious as to how we might approach learners who have multiple disabilities. I had, for three years, a student who struggled with impaired eyesight and at least three different autism-spectrum disorders. I know this is not as common a case as having a learner who only struggles with one disability, but it still raises some interesting questions, in my view.