evolution

The Fermi Paradox and the Drake Equation – From the Cusp, to Intelligence (f_i, part 2)

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In our last post, where speculations about the Fermi Paradox moved from astrophysics to the life sciences, we looked at some of the many ways life could be prevented from giving rise to a pre-intelligent species–say, an animal like Proconsul, the earliest known ape, living about 25 million years ago. In doing so, we knocked […]

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The Fermi Paradox and the Drake Equation – From the Origin of Life to the Cusp of Intelligence (f_i, part 1)

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So far in our speculations about the Fermi Paradox, uncertainty in calculating the Drake Equation has led us to a broad range, with N = [0.84-16.03] * f_i * f_c * L. Despite the uncertainty, we concluded that relatively high values of f_i (the fraction of life-bearing worlds that give rise to intelligence), f_c (the

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