IMHO there is too much arbitrary averaging (or selective non-averaging) going on without details on the methodology. Is the avg. number of minutes watched/liste

IMHO there is too much arbitrary averaging (or selective non-averaging) going on without details on the methodology. Is the avg. number of minutes watched/listened on youtube/spotify the average of paying subscribers? Plus, video games priced at 60$ are the release price, where is the average retail price for this? Do people that pay $60 on a video game tend to play the game longer, or rather shorter? Etc... To be fair, author acknowledges the numbers are probably incorrect, but there is too much going on without necessary details to do proper comparrison.