Perhaps. The point was to your Einstein comment. The theories of wormholes negates your Einstein either/or statement.
Einstein mused about many things. He famously said that imagination is more important than intelligence. That may be true. However his theories of relativity and the observation that no physical entity can travel faster than the speed of light, the enormous density of any object even approaching such speeds, is the key point when referencing Einstein to debunk UFO fantasies.