With Apologies to Dr. Tyson

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I've often wondered what it is that enthralls so many people about the prospect of finding life elsewhere in the universe. It has always struck me as a kind of sickness very much akin to that which must have gripped early settlers in the Americas. Here in North America someone even gave this sickness a name and glorified it. They called it Manifest Destiny.

I mean, what is it that would cause us to justify the expenditure of so many billions of dollars when it has been proven beyond a shadow of a doubt that human beings are the single biggest threat to life on our own planet?

It seems to me that anyone with any sense would be attempting to curb our appetite for interplanetary exploration.  

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