What are some things around you that you can't see?
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What invisible force keeps your feet firmly on the ground and makes dropped toast always land butter-side down?
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Which invisible travelers carry your Wi-Fi signals and let you binge-watch cat videos?
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What microscopic roommates live in your bed and throw invisible parties every night?
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What mysterious cosmic stuff makes up most of the universe but refuses to show itself at parties?
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Which invisible companion travels with you everywhere but never asks for directions?
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