Post 1,111!
Correct me if I'm wrong, but up to what I know, Paul Dirac came along an equation that has his name. This equation impplies, atleast, another universe apart form ours in which the amount of matter/anti-matter are opposite.
Dirac's equation is:
and it is a special case of Shroedinger's equation:

And from dirac's equation we derive the "Dirac Hamiltonian":
Now, I think that, Antonio, still, is probably the only person to answer my question, but if someone can, please do so. My question is:
In what way, or what part or what of Dirac's equation impplies that there is an opposite parallel anti-universe?