Anyway, this looks pretty interesting but the main takeaway from this for me is how disadvantaged non-English media are, i.e. I found it very difficult to pay attention to the subtitles for very long, eventually losing interest completely. At least when they're in English I can tab over and passively listen while I get on with whatever I'm doing. I'm sure Yandex doesn't care as presumably all of their customers are Russian, but it raises the issue that these kinds of videos are indulgent at the best of times, and the information conveyed per time is very poor, the main reason I find conference talks hard going too.