Reply to post: This *really* wouldn't end well

Has science gone too far? Now boffins dream of shining gigantic laser pointer into space to get aliens' attention

Neil 32

This *really* wouldn't end well

And not just because of the post number!

Q: If every person on Earth aimed a laser pointer at the Moon at the same time, would it change color?

A: https://what-if.xkcd.com/13/

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