it is believed that photons, and some sub-atomic particles (not being 3 dimensional) do not occupy space) Fisherman
photons in a vacuum also do not occupy time, but time does not disappear because of that.
photons, in movement, exist in two space dimensions, but space has not disappeared because of that, so: at least time might be fundamental and some kind of ur space.
Positive and negative energy might balance to zero in an equation or on [a] balance, but that does not mean zero, but 2 energies. The same with matter, vs. antimatter, not zero matter, but 2 matters. (or a lot of energy if the equation is solved)
Infinity is just that, going from negative infinity through zero to positive infinity still gives you only infinity,
Gravity, a result of matter via Higgs, slows down, even halts movement through time, but that does not make time disappear, because it exists regardless of that distinct gravity field. so:
with both time and energy, ur dimensions possibly fundamental, the conditions are set for pre-big bang scenarios, beyond our ken, imho.