I am firmly one of those who doesn’t have high hopes for Dark Matter - or isotropic Dark Energy. For now I think MOND is developing a better representation of gravity and aspects of our cosmology. What I’m most curious about is what, if any, emergent/quasi-fields might form in space where it’s dominated by EM fields; I added gravity as it can still be a factor, given it is a omnipresent field throughout our universe - even in cosmic voids.