The KBC Local Void (a roughly 20% underdensity extending out to about 300 Mpc around our position) is statistically rare in ΛCDM N-body simulations. Voids of comparable scale and depth occur with low probability under standard Gaussian initial conditions; finding ourselves embedded in such a void is improbable for an unbiased observer (Keenan 2013; Haslbauer 2020).
The standard model assumes that voids form as natural underdensities in a Gaussian random matter density field, growing from primordial perturbations through gravitational instability. Under this framework, the largest deepest voids are statistical tails (rare outliers). The KBC void's scale and depth are uncomfortably far out on those tails for a typical observer, raising the "why are we here" problem.
SCT replaces the hot-dense-center with a superluminal collision and the thermalized debris field that became our visible universe. From this single change, the cosmic web's morphology is no longer the output of gravitational growth from Gaussian noise. It is the inherited geometric structure of a collision event that deposited filaments, walls, and inter-filament voids in a specific spatial arrangement.
Voids in SCT are inevitable inter-filament regions, not rare statistical fluctuations. The collision impact-parameter distribution P(b) ∝ b favors grazing collisions geometrically; combined with the head-on collisions that produce filaments and the collision nodes that produce massive clusters (P33, P34), the natural output is a foamy cosmic web with filament-bounded voids as common geometric elements rather than rare outliers. The size distribution of voids is set by the size distribution of the bounding filaments, which in turn is set by the parent-pocket size distribution. SCT predicts roughly 5 times more large voids than ΛCDM Gaussian-tail simulations expect, because in SCT large voids are typical inter-filament gaps rather than statistical anomalies.
The KBC Local Void is therefore not a rare outlier; it is a typical inter-filament region for our local cosmic-web tier. The probability that an observer finds themselves embedded in a void of this scale is the volume fraction of such voids in the SCT cosmic-web morphology, which is high enough that our location is unremarkable. The "why are we in such a void" problem dissolves entirely once voids are recognized as predictable geometric features of the collision-imprinted cosmic web rather than statistical rarities.
This same mechanism produces the Eridanus Supervoid, the Local Supervoid, the wide range of sub-supervoids cataloged in surveys, and the general tendency of observed void abundance to exceed ΛCDM predictions. None of these is anomalous in SCT; they are predicted features of the cosmic web that the collision-geometry origin generates as a matter of routine geometry.
If a precision void-abundance census from DESI, Euclid, and SKA reaches a void size function consistent with ΛCDM Gaussian-tail predictions at high statistical significance (with no excess of large supervoids beyond standard expectations), the M4 collision-geometry void origin is refuted. Specifically, the predicted ~5 times excess of large voids should be observationally distinguishable.