The emergence of natural selection, requiring that reproducing entities present variations that may be inherited and passed on, was arguably the most important breakthrough in the self-organization of life. In this Perspective, the assumptions governing biological reproduction are confronted with physico-chemical principles that control the evolution of material systems. In biology, the reproduction of living organisms is never considered to be reversible, whereas microscopic reversibility is an essential principle in the physical description of matter. Here, we show that this discrepancy places constraints on the possibility of finding kinetic processes in the chemical world that are equivalent to natural selection in the biological one. Chemical replicators can behave in a similar fashion to living entities, provided that the reproduction cycle proceeds in a unidirectional way. For this to be the case, kinetic barriers must hinder the reverse process. The system must, thus,
The Minnesota Twins got back in the win column with a solid takedown of Pittsburgh at Target Field on Friday, and the Lynx beat the Storm in Seattle, while the St. Cloud Rox came up just short of winning the Northwoods League title. On Saturday, the Minnesota Vikings will take the field at U.S. Bank Stadium for their second preseason matchup.
The St. Cloud Rox won their 5th straight game 13-1 over the Minot Hot Tots Wednesday night to improve to 21-10 in the 2nd half of the season. The Rox scored at least 1 run in every inning except the 8th inning.
The St. Cloud Rox go into the All Star break at 15-9 in the 2nd half after posting a 4-0 win over Bismarck. The Rox scored single runs in the 1st and 2nd innings and added 2 more runs in the 5th inning.
The St. Cloud Rox improved to 5-1 in the 2nd half of the season with a 10-3 win over the Larks in Bismarck Sunday. St. Cloud scored 2 runs in the 4th inning, 4 runs in the 6th inning and single runs in the 2nd, 5th, 7th and 9th innings.