Discussion on the Characteristics of Virtual Spacetime from Schwarzschild's Internal Solution

This article analyzes Schwarzschild's internal solution and provides a relativity theoretic basis for the existence of virtual spacetime. Based on this, the corresponding relationship between virtual spacetime and real spacetime is analyzed, and Maxwell's equations of virtual spacetime are constructed, and the conversion relationship between the two spacetimes, including speed, length, and time, is obtained. It is pointed out that the existence of virtual spacetime is a corollary of general relativity theory. It also pointed out that the concept of virtual spacetime can better explain some unusual properties on the surface and interior of black holes.