Max Tegmark was on the Sean Carroll podcast recently, talking about the different types of multiverse we could postulate may exist[0]. I found the quanta article fascinating, and I don't believe it's strictly speaking 'circular'. It can also be the case that multiple solutions exist mapping the relationships between a given set of fundamental laws. Prof. Tegmark discusses this in the '4th level' of multiverse which examines whether it's right to talk about a multiverse of all possible mathematically consistent universes.[0]: https://www.preposterousuniverse.com/podcast/2019/12/02/75-m...
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