The natural mechanism of wormholes can be divided into two types: the first is the powerful gravitational energy of black holes; The second is the rapid rotation of kerr black hole, and its Renstelling effect tears some small holes in the space-time around the black hole. Wormholes can be used as hyperspace pipes, or they can appear in the normal space-time of the universe, and it is possible to realize hyperspace transformation.
The combination of black hole and white hole is called wormhole. The white hole may be far away from the black hole, and there may even be a space-time region that is not connected with our region. It is reasonable to say that a wormhole with a convenient location will give us a convenient and fast way to travel long distances, even against time. Wormholes have no horizon, only a decomposition surface with the outside world, just like a four-dimensional pipeline tangent to a three-dimensional space. In short, we know little about the nature of black holes, white holes and wormholes. They are still mysterious things, and many problems still need further discussion. Astronomers have indirectly discovered black holes, but white holes and wormholes have not really been discovered.
But no one actually knows what's in the wormhole, because it hasn't been discovered yet. Wormholes have no horizon, so we can safely pass through wormholes without being destroyed by huge gravity. Einstein believes that the essence of wormholes is to be used as high-speed trains in the universe. At the same time, the wormhole can't be a high-speed train in the universe, and it also depends on negative energy, which can keep the decomposition surface between the wormhole and the outside space-time open continuously. ?