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One of the first people to consider this was Thomas Gold (https://en.wikipedia.org/wiki/Thomas_Gold https://en.wikipedia.org/wiki/Thomas_Gold), for example http
by gilleain 8y ago
One of the first people to consider this was Thomas Gold (https://en.wikipedia.org/wiki/Thomas_Gold https://en.wikipedia.org/wiki/Thomas_Gold), for example http://www.pnas.org/content/89/13/6045 http://www.pnas.org/content/89/13/6045.
There's a nice review here (http://www.pnas.org/content/114/27/6895 http://www.pnas.org/content/114/27/6895) but it doesn't have much detail.