Were Mercury and Mars separated at birth?

The title of the article is ‘Were Mercury and Mars separated at birth?’ This is about the state of Mercury and Mars at birth. It means that Mercury, Venus, Earth and Mars set up a system close to symmetrical, with the two largest planets between the two smallest, and Brad Hansen of the University of California, Los Angeles built a numerical simulation to explore how a ring of rocky material in the early solar system could have evolved into the planets, and at last Hansen find that Mercury and Mars were not separated at birth. Hansen find out that the smaller bodies around the sun are typically separated from the larger two bodies Earth and Venus if they experience collisions on the way, like the thought of Earth created the moon, also including Mercury and Mars. As the bodies once beyond the ring, they cannot acquire mass and so remain pint-sized, Mercury and Mars have various properties. And I agree with the idea of Hansen just because she got out the idea through her practices. The only holder of the idea is the simulation, but that can also prove the idea is believable. From the article, I find out that Mercury and Mars were not separated at birth, and also we should fulfill while we explore truth about everything.