This point is by Bill Dembski: it's possible that Rubenstein knows nothing about piano yet hits keys randomly right before perfect music plays. His point is to show that if an infininte number of universes get rid of the anthropic principle, it gets rid of a whole lot of other stuff besides (including, I would add, science).
Here is a summary and comments on the essay Freedom and Resentment by PF Strawson. He makes some great points, and when he is wrong, it is in such a way as to clarify things a great deal. My non-deterministic position is much better thanks to having read this. I’ll summarize it in this post and respond in a later one. In a nutshell: PFS first argues that personal resentment that we may feel toward another for having failed to show goodwill toward us would have no problem coexisting with the conviction that determinism is true. Moral disapprobation, as an analog to resentment, is likewise capable of coexisting with deterministic convictions. In fact, it would seem nearly impossible for a normally-constituted person (i.e., a non-sociopath) to leave behind the web of moral convictions, even if that person is a determinist. In this way, by arguing that moral and determinist convictions can coexist in the same person, PFS undermines the libertarian argument ...
Comments
I suppose if the infinite variations truly represented every logical possibility, then there would be no true underlying physical laws. (As far as I'm aware, though, this isn't what multiverse proposers say.) In that case, there truly would be no "laws" to speak of! Is that what you mean by - there would be no science?
Uh, thinking about what I just said, I am not so sure that the word "bloviation" doesn't apply, but in any case, it's my story and I'm stickin' to it.
Regarding infinite variations, I like what Dembski says. He is having fun with logical possibilities, which include a lot of things that, if taken seriously, would seem absurd to us. His real point seems to me to be that if an infinite variety of universes includes these logical possibilities, then how do you know that you don't live in one of them right now? And to the degree that you are unable to give an answer to that question, science no longer seems to look that much like knowledge and more like wishful thinking, i.e., science looks rather unscientific.
In any case, the claim that there is an infinite variety of universes isn't the same as the claim that every logically possible universe exists. If the latter is the case, then the former is too; but not vice versa.