This implies that we exist in a universe that tries out many possibilities (many worlds interpretation)
Big World rather. Many-worlds doesn't give different laws of physics in the way that the string theory landscape or Tegmark's mathematical universe hypothesis do.
Sweet, there's another Bloggingheads episode with Eliezer.
Bloggingheads: Robert Wright and Eliezer Yudkowsky: Science Saturday: Purposes and Futures