What should the ID proponent do with multiverse speculations? Embrace them.
Multiverse speculations routinely take a beating on Uncommon Descent for various reasons – the lack of falsifiability, the entirely speculative nature, the near complete lack of scientific evidence. All, in my view, quite good reasons to reject it all.
But I think ID proponents are missing the boat by reacting to multiverse speculations so negatively. So, I’m going to offer up several reasons why I think it’s a good idea, from an ID perspective, to accept and take part in multiverse speculations.