The universe is expanding at an unimaginable speed. When you saw a distant star twinkling at you just a second ago, maybe it has already moved away from us, and all that is left to us is its legacy - a beam of light with tens of millions of light years, appearing slowly in front of our eyes. Who would know that.
Any object can be attracted. The greater the mass of the objects, the closer they are to each other. If they are close enough, they will fall somewhere together. Like... Three embryos in a lab.
Copphan's mood in the laboratory was particularly complicated. He cultivated two new lives from two pairs of genetically superior men and women, but he found that the two embryos were simply two extremes, one was predatory and the other was docile. In desperation, Kopphan had no choice but to try to fuse the genes of the two embryos and place his hope on the fused embryo. Surprisingly, the three embryos began to grow stably in the culture medium. What was amazing was that the two extreme bodies actually surrounded and protected the hoped-for embryo. Kopphan was moved to freeze the picture at this moment. Maybe the future is not as beautiful as imagined, but you are all the future.
PS. Some knowledge may not be rigorous enough, so corrections are welcome.