I have a theory. It's that energy at the lowest scales is sticky, can
be stretched and squished, and is a simple geometric property of space.
There is also the relativity of energy, which means energy can be
positive or negative, and how much energy exists is relative to how
much energy is around it.

I haven't got any calculations done, but I've got the defining
characteristics, and believe it to reduce to string theory at lower
energy scales.