How was protein synthesized from amino acids in the prebiotic world?

Haha. Agreed. But from random chance using abiotic synthesis as the causal factor.............. That's another story.
Its kind of similar to the principle of "survival of the fittest " in biology. Stated in more detail the principle refers to differential survival of organisms in specific environments. A lizard is more likely to survive in a desert than monkey, and lizard would be less likely to survive in a jungle. The same could be said of things. The stability, the survival of things depends upon their environment that they are in. Right after the big bang the environment was so hot that the only things that could survive were protons, neutrons and electrons. These things collided with each other, but even the few that managed to stick together were instantly destroyed by the hot environment. The fittest things in that environment were these subatomic particles. As the universe cooled when neutrons, protons and electrons collided they started to stick and formed Helium. In that environment, that was the most stable thing around and the universe was filled with helium. as time went on 3 helium atoms would bang together and every so often a carbon atom was formed. This is how random interactions in different environments results in increased complexity. In our Sun at 10,000 degrees, Helium is more likely to survive. Its stable at that temperature, a methane molecule would be instantly destroyed. On the surface of our planet, billions of years ago, carbon, hydrogen, nitrogen, oxygen, sulfur atoms interacted and formed increasingly complex molecules. The survival of these molecules depended upon the environment that they formed in. Some formed in water and some in other liquids. Over the course of time more complex molecules formed. hydroxyl ions, methyl ions, methane, propane, long chains of carbons (fats). These things (molecules) would stick together forming increasingly complex structures. At some point structures which we call amino acids would form. These would combine to form even more complex structures. Some Groups of complex molecules were more stable than other groups of complex molecules. It isn't like "tyrosine Reductase" (a protein enzyme) randomly popped into existence, rather these complex molecular structures coalesced and became more stable because of their chemistry. Complex chemical structures that could catalyze things might have been more able to last longer than complex structures that were inert. I know that advocates of intelligent design will have none of this. They are notorious for “Reversing the sense of cause and effect" Its like saying that "it’s a miracle that everyone’s legs are exactly long enough to reach the ground." If you want to understand more, buy Campbells Biology, its very readable and its the Freshman college textbook for the academic biology course in a lot of colleges. Also consider buying Leningers Biochemistry. I hope this was helpful, Jeff