Wednesday, 5 October 2011

Twist on life

This TED talk describes an interesting twist on studies into the origin of life.

Cronin and his team are looking at inorganic matter (i.e. chemicals that don't contain carbon) for answers. There are, of course, huge quantities of speculation involved, and Cronin's willingness to carelessly indulge should make us wary.

This is unlikely to go anywhere. It is widely acknowledged that it is the unique properties of carbon that make complex life possible. The only other possible contender is Silicon but it is nowhere near as flexible. Organic (carbon based) chemistry has an unparalleled diversity in the compounds it can generate and it has the critical ability to be to form polymers. As an added bonus it is the fourth most abundant element in the universe after hydrogen, helium and oxygen.

The only life we have evidence for is intrinsically tied to the unique nature of Carbon.

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