Time picked these photos. They are memorable. They are influential in part because everyone knows them. Is it possible for any image/video/story to be that prominent nowadays? There are too many channels vying for our attention. 75 million watched the Seinfeld series finale. The Walking Dead had ratings of 9.6 in 2016. Sure, comparing a series finale against a regular episode may not be fair, but how does any group of people have a set of common cultural stories if there are no standard channels for consumption? The assumption is that it is much easier and faster to share, so theoretically it is possible. If all the social platforms are algorithmically personalizing content for clicks/engagement/whatever, essentially customizing for the individual instead of the common, how do you build the common?