Before revision:  Since templated ligation is a most basic reaction of oligonucleotides, the described mechanism could have been implemented under microthermal convection on early Earth .
After revision:  Since templated ligation is a most basic reaction of oligonucleotides, the mechanism could function as a missing link between polymerization and the self-stabilized replication, offering a pathway to the autonomous emergence of Darwinian evolution for the origin of life .