An equation created mass - so Einstein created mass - it is amazing that we existed before the creation of mass. You claim mass is not a proir - ok - what created mass...how did the property come into existence? You also claim mass is not a property of a three dimensional world - are you claiming there are one or two dimensional worlds with mass? Where? Show me. Buggs Bunny lives in a two dimensional world - but I think that is imaginary.
Nothing "created" mass, mass is simply a property of matter, and is a function of energy in the equation outlined.
so Einstein created mass
No.
what created mass.
Nothing. See above.
? You also claim mass is not a property of a three dimensional world - are you claiming there are one or two dimensional worlds with mass?
You can posit 26 dimensions if you'd like (and many physicists have and do), and mass will still be a property of matter.