The wormhole in the universe will have singularity only under the condition of infinite gravity, but infinite gravity does not exist, because any force has a maximum value, and because of the speed limit, momentum and kinetic energy are limited. Einstein's theory of relativity can be summarized as four points. 1, the hypothesis of superluminal time reversal, 2, the theory below the speed of light, the relative change of time and space, the relative contraction of volume in the direction of motion, 3, the formulas of mass and energy, the increase of speed leads to the increase of inertial mass, 4, the equivalence principle, and the equivalence of gravity and acceleration. Einstein's premise is that there is no superluminal in the universe, and if there is, there will be negative mass. The law of conservation of energy tells us that mass will not be produced out of thin air. Einstein's hypothesis and pure mathematical deduction are absurd, so let's not take them seriously. Let's start with Einstein himself. He won the Jobert Prize in Physics not because of the theory of relativity, but because of the photoelectric effect. Einstein's "Theory of Relativity" was published with the approval of Planck's magazine, and the great physicist Planck thought it could be discussed. Of course, the limit of light speed has been recognized by the world, and the infinity of gravitational speed has been solved since then. This is one of the greatest events in physics. The photoelectric effect further shows that light is composed of "particles"-photons, and the future of physics is bright. Time is a measure of strength, and it is our need to measure the past, present and future. There will be no force between time and matter. We must be clear about this, and this is Einstein's mistake. "Time" means nothing to a fool or a cow. Speed has no effect on the existence of matter. The greater the speed, the closer it is to the acceleration of magnetic field and the density of force. The greater the speed, the greater the stress on the internal space of matter, and the internal space of natural matter will be deformed, while the space next to it will remain unchanged. We don't understand time and space unilaterally, and it's not the first time that physics has done something wrong. Einstein's theory of relativity is partly contradictory to quantum mechanics, which in itself shows that the shortcomings of relativity are obvious. Here we discuss it again to warn future generations that it is meaningful to believe that books are better than no books. There is a difference between physical reasoning and mathematical reasoning. When relativity is not used, it is abandoned when it violates the law of conservation of energy. Wormholes in the universe are Hawking's hypothesis. Hawking's "wormhole" theory based on Einstein's theory of relativity about infinite gravity is absurd.