I have already found an error in the GRT equation for about six months, but I still did not dare to share this idea here. If you look at the equation of Newton's law of universal gravitation and Einstein's equation of general relativity, you can see that they both include the gravitational constant G. But this constant is dimensional, and its SI dimension is m^3/kg*s^2. In Newton's theory, space and time are absolute, i.e. the scales along the axes of spatial coordinates and time are unchanged,