Monopole Absence
Grand Unified Theories predict that the extreme temperatures of a hot Big Bang singularity would have driven phase transitions producing a dense population of magnetic monopoles — topological defects arising when causally disconnected regions of the early universe settled into different vacuum states. The observed absence of monopoles constitutes a severe fine-tuning crisis for standard cosmology that inflation was specifically invented to solve, by exponentially diluting any relic abundance. In Successive Collision Theory, the monopole problem does not arise in the first place. The collision front that initiates our observable universe sweeps the entire overlap volume simultaneously — faster than any internal signal can propagate — depositing kinetic energy uniformly and thermalizing the plasma in a single coherent event. Because the thermalization is genuinely simultaneous across the whole observable volume, the plasma does not contain causally disconnected patches that freeze out independently into different vacuum orientations. There is therefore no topological mechanism to nucleate monopoles in the first place. The absence of monopoles is not a relic that must be diluted; it is a boundary condition set by the collision geometry itself.
This resolution is deeply connected to SCT's solution to the horizon problem. Both the monopole absence and the CMB uniformity trace back to the same physical fact: the superluminal collision front precedes all internal causal contact and imposes correlated initial conditions across the full overlap volume before any region can evolve independently. In standard GR, Special Relativity constrains only velocities of objects accelerated within a single inertial frame by local forces — it does not forbid the relative velocity of two independently formed spacetime pockets from exceeding c, just as galaxies beyond our Hubble radius already recede superluminally within accepted ΛCDM. SCT extends this same accepted reasoning to the collision event itself. The result is a universe that begins thermalized, correlated, and topologically trivial — no inflation, no fine-tuning of reheating, and no need to invoke exponential dilution of exotic relics. The colliding pockets contained pre-existing matter that had already processed through prior stellar generations; any relic particles from earlier epochs in those parent frames would themselves be vastly diluted by the long cosmic history preceding the collision, providing a further natural suppression of any exotic relic abundance without invoking new mechanisms.