Hi Gary - I enjoyed reading your essay. In your conclusion you state,
" The author argues that the vacuum is the most fundamental structure in the universe and that the Octonion Group describes the vacuum."
The first part of this statement is profound "that the vacuum is the most fundamental structure in the universe." You also state earlier that we know only 5% of the universe's content.
Do you think it is possible that that spacetime itself can be further broken down into something even more fundamental?
I applaud the math you provided with the Octonion Group BUT is this much different than many other mathematical interpretations in expressing the properties of spacetime? Will your interpretation render a clear picture that leads to everything? The other interpretations have gotten us nowhere. If the properties of spacetime could be derived from something even more fundamental that forms spacetime, then the math of spacetime would be derived instead of the properties of spacetime being interpreted by various mathematical conjectures.