I've never found a good description or explanation of string theory for the layman. I look, but then I always run into Brian Greene. I did find this video[1], where a professor explains why he at least believes there is something to it. Tl;dr - they weren't looking for strings. They sort of 'popped out' of the equations. [1] = ▶ this video
in “The Admiral of the String Theory Wars (2015)” · View on HN