The Cosmological Smoke Signal: A Distinctive Void Lattice and Repulsive Lensing Signature from Elastic Spacetime

Elastic Spacetime Theory (EST) models spacetime as a physical elastic medium whose void
structure contributes a dynamical negative pressure at cosmological scales. In this work we
identify two sharp, falsifiable observational signatures that arise generically in EST cosmology
and are absent in ΛCDM: (i) a coherent void lattice with a characteristic scale of 110±5 Mpc,
and (ii) a repulsive weak lensing signal inside deep cosmic voids with convergence κ ' −0.03.
We further argue that the large-angle CMB anomalies commonly referred to as the “Axis of
Evil” may represent a residual imprint of an early-time two-dimensional elastic ordering transi-
tioning into three-dimensional expansion. These predictions are directly testable with existing
and forthcoming Euclid and LSST data, providing a near-term opportunity to confirm or falsify
the elastic spacetime paradigm.