During translation, a peptide is synthesized one amino acid at a time. At the moment when there are only two amino acid, although there are 9 possible configuration, only one is the most favorable (free energy wise). The first 2 amino acids are locked into the most favorable configuration. The the 3rd amino acid is linked, again, there is a most favorable configuration between the 2nd and the 3rd amino acid. The peptide is again locked into this configuration. This process is deterministic and there is only one final tertiary structure . I realize that the reality is not that simple, but can the simple-minded structure be the basis for further refinement? I wonder.