The Origin of Life Research

Miller and Yuri produced two or three protein forming amino acids out of the ensemble of 20 that you would need to build a whole protein. But they didn't show how you could sequence the amino acids properly to get them to fold into proteins. And those instructions were found on the DNA molecule. It's the origin of the code that has presented the most acute problem for origin of life research, because chemistry simply doesn't move in the direction of informational complexity - it moves in other directions.