Self-Supervised Multi-Modal World Model with 4D Space-Time Embedding. - Lance Legel; Qin Huang; Brandon Voelker; Daniel Neamati; Patrick Alan Johnson; Favyen Bastani; Jeff Rose; James Ryan Hennessy; Robert P. Guralnick; Douglas E. Soltis; Pamela S. Soltis; Shaowen Wang (CoRR, 2026)