The Universe Was Created Recently
Many clock-like processes operating in the solar system and beyond indicate that the universe is young. For example, spiral galaxies should not exist if they are billions of years old. The stars near their centers rotate around the galactic cores faster than stars at the perimeters. If a cosmology based on long ages is correct, they should have blended into disk-shaped galaxies by now.
Comets pose a similar problem. They lose material each time they pass around the sun. Why would they still exist after vast eons? Saturn’s rings still look new and shiny. And many planets and moons are very geologically active. Surely the energy they continually expend should have been spent long ago if they are as old as they are usually claimed to be.
Instead, the more astronomers learn about the heavens, the more evidence there is that the universe is young.