Jason Kottke at Nieman Journalism Lab:
Instead of blogging, people are posting to Tumblr, tweeting, pinning things to their board, posting to Reddit, Snapchatting, updating Facebook statuses, Instagramming, and publishing on Medium.
In this sentence I think Jason gets closest to expressing what Medium is to those who don’t get it.
He closes with the same warning I offer whenever I talk about Medium (emphasis mine):
Over the past 16 years, the blog format has evolved, had social grafted onto it, and mutated into Facebook, Twitter, and Pinterest and those new species have now taken over. No biggie, that’s how technology and culture work. If you want something to cry about, cry about the decline of the open web, the death of which would be a huge blow for us all. But perhaps that’s a topic better left for 2015.
Further reading: some added commentary on kottke.org.