[ThomPete]

The primary problem for twitter is that they more than ever is a protocol for link-sharing.

If twitter wants to survive they need to get content onto their platform which means loose the 140 character.

In some ways and ironically, Medium could be a kind of replacement for twitter if they found a nicer balance between long and short posts.

[nemothekid]

What about Tumblr? Commonly when people ask to lose the 140-character limit I try and understand what people are trying to accomplish and how that is any different from what Tumblr has now.

After spending some time on tumblr, I've noticed the 140-character limit is great from a reader point of view. What it ensures (like you are alluding to) is that one user doesn't dominate my feed/attention with one really long post. I don't need curation on Twitter, because the time it takes to read 100 twitter posts is constant. It's harder to get trapped in an platform-imposed filter bubble on Twitter this way too because there's less pressure on the platform to algorithmically rearrange your newsfeed as well.

[ThomPete]

But Tumblr is Tumblr, they start from a different context.