We send out the Voyager probes into interstellar space in a big-hearted fanciful spasm of hope. Two capsules from earth containing images and songs just waiting to be found in – who knows – tens or hundreds of thousands of years if all goes well. Otherwise millions or billions, or not at all. Meanwhile we begin to listen. We scan the reaches for radio waves. Nothing answers. We keep on scanning for decades and decades. Nothing answers. We make wishful and fearful projections through books, films and the like about how it might look, this alien life, when it finally makes contact. But it
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