But if they were of antimatter they and their surroundings would blow to smithereens before we…

If we ask a visitor for their CP-violation measurements, we can know immediately whether they’re matter or antimatter. If we really want to be sure, we can throw an apple their way; if it annihilates with their hull, t…
What To Do If You Encounter A Visitor From Another Universe
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Ethan Siegel
B. O. Face
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1 min read·
Apr 11, 2019
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But if they were of antimatter they and their surroundings would blow to smithereens before we could ask them anything!
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Written by B. O. Face2.9K Followers
·1K Following
No woman ever murdered her husband while he was washing the dishes.
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