Alternate Reality Game, Incunabula, Joseph Matheny, Multiverse, Ong's Hat What is Ong’s Hat, and why is it so important to interdimensional travel? July 25, 2022 admin Ong’s Hat was once a small town in the Pine Barrens of New Jersey. However, in the 1990’s, rumors began to pop up about chaos theory and interdimensional travel via depravation tanks. The JTO tries to replicate the experiment.