This guy is exploring ultra large colliders: https://arxiv.org/abs/2106.02048 https://arxiv.org/abs/2106.02048 > The CCM will be an important stepping stone

This guy is exploring ultra large colliders: https://arxiv.org/abs/2106.02048 https://arxiv.org/abs/2106.02048 > The CCM will be an important stepping stone toward an ultimate Planck- scale collider, with a centre-of-mass energy of ∼10^16 TeV, that would require a minimum size equal to a tenth of the distance from Earth to Sun.