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July 12, 2012 09:18 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/W6JJfrhIw1g/are-you-optimistic-or-pessimis.html
Are you optimistic or pessimistic about humankind's ability to prevent a killer asteroid from killing us all?
In his book, The Beginning of Infinity, Oxford physicist David Deutsch writes: If a one kilometer asteroid had approached the Earth on a collision course at any time in human history before the early twenty-first century, it would have killed at least a substantial proportion of all humans. In that respect, as in many others, [...]Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/W6JJfrhIw1g/are-you-optimistic-or-pessimis.html
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