This is what it says: >"Many of today’s theorists — chief among them the proponents of string theory and the multiverse hypothesis — appear convinced of their

This is what it says: >"Many of today’s theorists — chief among them the proponents of string theory and the multiverse hypothesis — appear convinced of their ideas on the grounds that they are beautiful or logically compelling, despite the impossibility of testing them." Your position seems to be different from that described in the article. Anyway, post-dicting is not as impressive as pre-dicting. How much less impressive is determined by the flexibility of the model. My understanding is that the string-theory/multiverse model is extremely flexible.