[sixdimensional]

I've always thought one would need a quantum clock to accomplish the same "instant" across the universe. Something that starts entangled and therefore stays in sync regardless of space and distance.

That's a complete amateur physicist taking a stab at it!! I'm probably horribly wrong :)

[ajkjk]

That's not possible. Quantum mechanics doesn't give you clocks anyway, but if it did it still couldn't solve the problem of time dilation either.