The Dirac Sea Does Not Have a Speed Limit

Figure 1: Dirac sea for a massive particle. • particles, • antiparticle

Between matter and antimatter is the quantum vacuum.

In Figure 1 above, the yellow region is where there are massive particles and time. The blue region is where there are anti-particles and anti-time or time going backwards from our frame of reference. The red region is the Dirac Sea.