"I could have sworn that I read in someones post that they thought that the creation of protons without starting mass was, at this time, very unlikely... "

Its not so unfeasable that you get yourself a whacking great particle accelerator and smash some stuff together and end up with a few protons who derived their mass from the energy of the collisions.

However producing a proton that has no mass, (rather than was created using no mass) is by definition impossible since protons have mass 1 , a positive charge without a mass is not impossible by definition but impossibe none-the-less since quarks have mass.

"I'm pretty sure that relativity also says that the effect of something cannot travel faster than the speed of light, hence the relativity of simultaneous events. But obvoiusly quantum mechanics seems to have different ideas about that"

The problem is that we don't know how to interpret what QM's says; Quantum mechanics appears to make a mockery of reality.

According to QM when you measure a property of a quantum state, that property is CREATED with the measurement IE. if i measure the momentum of an electron before the measurement the electron does not posses momentum.

Thats where the EPR parados comes in, if we can measure the momentum of one photon of an entrangled pair we can deduce the other one no matter how far it is away. So we measure the momentum of photon 1 in the lab meaning photon 1 now has momentum, but we also work out the momentum of photon 2 which is 10 light years away, so spontaneously that photon also has momentum...... how? magic? damned if i know.

But we still have no idea what that really means, we don't get this reality springing into being when measured stuff fully.

Thats why schrodingers cat still makes the rounds.