It's not just playing Minecraft either - it's watching videos of other people playing Minecraft EG:
http://www.telegraph.co.uk/men/the-filter/10980512/Stampylon...
http://www.telegraph.co.uk/men/the-filter/10980512/Stampylon...
Everyone knows who Bugs Bunny is, and can probably share the memory of a few plot points of some iconic episodes.
A group of people 20 years from now talking about videos they watched on YouTube will have a hard time coming up with a channel that two of them remember watching, much less a particular video. Unless, of course, they play the stupid game of "no, I remember one that was funnier" and spend the time searching on their phones for that one video that will one-up the others while to playing the videos they have queued up...ugh. https://xkcd.com/920/