Which of the well known critical cell proteins would have formed first and started a cascade that would lead to life? I'm not too well read on prebiotic synthesis and other such matters, but it seems to me that it would have been very beneficial for DNA polymerase to be created at the very least. Thus at least some DNA would be replicated, which seems to be the very minimum for life, right? At the same time to make most proteins you need some sort of a ribosome as it is difficult to carry out the reaction needed to polymerize amino acids in a normal environment. This is the function of one of the units of the ribosome (forget whether it is the 70 or 30S). Anyway, just a musing - any thoughts?