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In a book I'm reading there is a sentence like this

Einstein laid down the gauntlet by considering as valid only two ways of understanding time.

I guess that laid down the gauntlet means challenge someone/start a debate, but I'm not sure about that.

Please explain for me.

Thanks.

closed as off-topic by GoldenGremlin, user140086, Edwin Ashworth, Dan Bron, ab2 Jul 21 '16 at 0:52

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  • The previous version, 'Definition of “throw the gauntlet down” ', was closed as genref. – Edwin Ashworth Jul 20 '16 at 8:18
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The usual term is throw down the gauntlet, referring to the practice of challenging someone to a duel by throwing your gauntlet (glove) down in front of the person you're challenging.

Laid down the gauntlet is not the usual idiom, but apparently is used, with the same meaning.

  • Perhaps "lay down" is used to imply it's a more gentle or polite action than throwing it down. – Max Williams Jul 20 '16 at 8:13

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