We give some arguments for why the Mathematical Universe Hypothesis (MUH) might be too restrictive in its assertions of what can exist, and that the universe/multiverse might be formed by more than what can be expressed mathematically. In particular, we show a thought experiment which indicates that the principle of materialism in general is an inadequate hypothesis of how consciousness appears. Instead we propose a novel approach to solving the problem of consciousness, which is to hypothesize that each universe might (...) have different laws of consciousness, just as they might have different laws of physics. We also show that MUH, without such consciousness laws, and without any other modification, leads to complete chaos for the observers in the multiverse, and therefore cannot hold as it is. We then go on to propose another theory of existence, which does not seem to lead to complete chaos. This theory hypothesizes that the multiverse is the consequence of what we might call the Logic of Everything (LoE) continuously deducing new truths about itself. Lastly, we briefly discuss what fundamental ethics can be derived from this theory, and others like it. (shrink)

The mathematical formulation of theories is a key driver of modern physics' successes, and reflects a foundational principle. Physicists are guided by this principle, and in doing so are granted all the benefits afforded by a hard science. Herein, I argue that this principle has even more to offer. For physicists to make sense of each other's mathematically formulated theories (MFTs) they must share a universal understanding on how to interpret them. In terms of model theory, there must be a (...) set of (basic but) universally accepted interpretations that relate the language of MFTs to meaningful elements. Because these interpretations apply to all MFTs, a model of (just) these interpretations would be a submodel of all models of MFTs. These universally accepted interpretations were, effectively, the bases for Max Tegmark’s mathematical universe hypothesis (MUH). This allowed Tegmark to relate many aspects of quantum and relativistic physics back to his hypothesis. However, Tegmark's goal of accounting for spacetime and quantum phenomena requires a model beyond universally accepted interpretations. I show that as a result, the model described by Tegmark's MUH is not a submodel of all existing models of MFTs. In contrast, I derive a novel model of just these universally accepted interpretations such that all models of all potential MFTs are, effectively, extensions to this novel model. Therefore, this novel model can enhance our understanding of every MFT, and facilitate collaboration and the unification of models across the branches of modern physics. (shrink)