The Finely Tuned Genetic Code

Francis Crick regarded the genetic code found in nature as a "frozen accident." Yet more and more it is looking to be the case that this code is exquisitely finely tuned -- with features suggesting it is indeed one in a million. Therefore ought not purposive or intelligent design be regarded as a legitimate inference, as the best explanation for how the code came into existence?

We are all familiar with the genetic code by virtue of which an mRNA transcript is translated into the amino acid...