I've found myself wondering at times, has there been any new development/thought put into Egan's Dust theory which you mention? As I take it a more rigorous but

I've found myself wondering at times, has there been any new development/thought put into Egan's Dust theory which you mention? As I take it a more rigorous but very close formulation is articulated in Max Tegmark's Mathematical Universe hypothesis (https://en.wikipedia.org/wiki/Mathematical_universe_hypothesis https://en.wikipedia.org/wiki/Mathematical_universe_hypothes...)