Dark Matter and Dark Energy are just catchall terms for "the force that causes more gravitation than we'd expect" and "the force that causes the universe to acc

Dark Matter and Dark Energy are just catchall terms for "the force that causes more gravitation than we'd expect" and "the force that causes the universe to accelerate in expansion" respectively. Those two phenomena definitely exist, and physicists are obviously not content with concluding our understanding at that, which is why hypothesis about what they are abound.