Five Best Ideas of the Day
Published each weekday, at noon.
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Recycling plastic might be worse than sending it to a landfill.
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Do we need to ban dollar stores to bring real grocery options to low-income communities?
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We could make Mars habitable by laying tiles of this flexible material.
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A new mobile standard is coming, but it might not make your phone any faster.
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What if a vaccination could improve our mental health?