01 January 1970 28 10K Report

The 1998 astronomical observations of SN 1A implied a (so-called) accelerating universe. It is over 20 years later and no consensus explanation exists for the 1998 observations. Despite FLRW metric, despite GR, despite QM, despite modified theories like MOND, despite other inventive approaches, still no explanation. It is hard to believe that hundreds or thousands of physicists having available a sophisticated conceptual mathematical and physics toolkit relating to cosmology, gravity, light, and mechanics are all missing how existing physics applies to explain the accelerating expansion of space. Suppose instead that all serious and plausible explanations using the existing toolkit have been made. What would that imply? Does it not imply a fundamental physical principle of the universe has been overlooked or even, not overlooked, but does not yet form part of physics knowledge? In that case, physics is looking for the unknown unknown (to borrow an expression). I suspect the unknown principle relates to dimension (dimension is fundamental and Galileo’s scaling approach in 1638 for a problem originating with the concept of dimensions --- the weight-bearing strength of animal bone — suggests fundamental features of dimension may have been overlooked, beginning then). Is there a concept gap?

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