Jon Stewart used his time as the first post-COVID guest on "The Late Show with Stephen Colbert" to push the theory that the coronavirus came from a lab in Wuhan, China. The former "Daily Show" host sat down with his old comedy friend for an interview where he almost immediately began pushing the unproven theory that COVID-19 began spreading across the world after leaking from a lab that was doing research on bat coronaviruses in Wuhan. "I think we owe a great debt of gratitude to science