The way life manages information involves a logical structure that differs fundamentally from mere complex chemistry. Therefore chemistry alone will not explain life's origin any more than a study of silicon copper and plastic will explain how a computer can execute a program.
When you have two busy kids running around the house returning e-mails is a task let alone surfing the web.
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Perhaps the best motivation for going to Mars is political. It is obvious that no single nation currently has either the will or the resources to do it alone but a consortium of nations and space agencies could achieve it within 20 years.
