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What's the main device to hammer in a nail?
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A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

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I guess it depends on how 50/50 works whether that's possible or not. Does it remove two wrong answers or does it leave you with one right and one wrong answer? Is light a wave or a particle? We're getting into Schrödinger lifeline territory now.