Good question! but I don't know the answer. maybe its a paradox :) I know everything has to move forward and evolve! Anyway, I like the 140 Character limit on Twitter. My post is acctualy exactly 140 characers long :) as most of my tweets. Just wanted to point out, that the current popularity of Twitter is based on current state. And maybe some payment options would be fine for people who care andn consider Twitter as the source of news and knowledge.
Thiel is smart enough to support Trump from the beginning despite all the disagreement from his circles. Although I think he is somewhat an extremist but with a vision. I think there will be change, and in good way.
When millions of apps are competing for the 20~30 spots on the mobile phone screen, demand will define the scale of supply, which will destine to shrink. But I disagree with the word "doom". The author use it to attract eyeball mainly.