The popularized fictional portrayal of a wormhole — prominently featured in"Interstellar" — doesn't quite match up to the theoretical reality. Though there is currently no evidence that wormholes, unlike black holes, exist, there is a relatively straightforward theory around their possibility.
If that folded paper could then be punctured, people could theoretically distort the fabric of space and time to instantaneously reach a distant location. The reality of this scientific theory, he added, is one that looks much more like the portals in"Doctor Strange" than it does the long, star-studded tunnels featured in other movies. The best example of a practical wormhole, he said, is represented by the doors in"Monsters Inc.