"We think the mission of Medium — to deepen people’s understanding of the world by helping to share the best ideas and best information — transcends mediums. To date, we’ve focused on article-length writing. It’s how our company got its name: as a home for medium-length writing on the internet."
"By contrast, Mastodon is primarily for short-form writing of 500 characters or less. Today we are extending what we do into the short-form medium (lowercase m) with an instance on Mastodon, me.dm."