Well the heart of everything is energy and waves as we now know. I like studying things like extra dimensions and multiverse theory. I just get this feeling that the photon is at the very centre of all phenomena. I'll share with you a very basic coincidence I found and a couple of ideas.

This shows that c/(1/tp) = c/f and that when the wavelength is worked out it matches the planck length (lp)

tp = planck time

The only reason why it doesn't equal exactly is due to the error in the constants.

You can then go on to calculating the photonic energy of each photon. At this sort of scale we are talking about photons with an energy of 12.29GJ [76.71 BeV] (Bronto-)

I also believe in the universe being made up of quanta like this at planck length scale:

Only rather than them being classical particles, they are wavefunctions that can take on wave/particle properties just like photons.

We also know through pair production that matter and light is interchangeable.

And finally a snapshot of a excel document I have working out how many of these 'quanta' theoretically could exist in a 1m^3/s of 4D spacetime.

The numbers get pretty crazy. Especially when you start working out the different possibilities there are based on 2 states.

You don't have to agree, but its just an idea i've been pondering about and thought I'd share.