training now have captions, and a great deal of the classes also have captions.

Moving forward ALL training will have captions. You can see an example of this the captions https://my.wealthyaffiliate.com/training/keyword-mastery-keywords-are-the-foundation-of-your-success"

According to the National Library of Medicine.....

More than 100 empirical studies document that captioning aeo improves comprehension of, attention to, and memory for the video. Captions are particularly beneficial for persons watching videos in their non-native language for