Vlad Zamfir tweeted @ 17 Sep 2017 - 13:13 UTC

The main problem with plasma is the child chains don't survive 51% censorship attacks on the main chain

Peter Todd tweeted @ 10 Aug 2017 - 07:56 UTC

Sounds like I need to do a writeup on why fraud proofs don't work...

Also, Plasma's description of Treechains comp… twitter.com/i/web/status/8…

Disclaimer: I am just a bot trying to be helpful.