Hmm.. does that mean that E=mc² is only correct for our dimension? Because, if you say that matter is a side-effect and not something like "higgs particle", then this doesn't hold up anymore. I mean not everything we don't know must exist as a particle.

I mean I believed the holographic universe theory a long time ago already, but taking it really serious, like considering it's implications to all existing findings and formulas is ripping apart my whole worldview (into a flat shape, with a lot of meta-data).