"not rational" — Alan Greenspan, 2017. Bitcoin prediction poster (BTC $15,927 at the time).
    “not rational” — Alan Greenspan, 2017. Poster by Buttcoiners.

    “Bitcoin is really a fascinating example of how human beings create value, and is not always rational... tt is not a rational currency in that case.”

    $15,927·
    Alan Greenspan

    Alan Greenspan

    Former Chairman of the Federal Reserve

    Bitcoin since the quote

    Then

    $15,927

    Now

    —

    Change

    —

    The context

    On , Alan Greenspan (Former Chairman of the Federal Reserve) made this statement while Bitcoin traded at $15,927.

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    "not rational" — Alan Greenspan, 2017. Bitcoin prediction poster (BTC $15,927 at the time).
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    Alan Greenspan (2017). "not rational" — Alan Greenspan on Bitcoin. Buttcoiners. Retrieved October 13, 2026, from https://buttcoiners.love/quote/not-rational-alan-greenspan-bitcoin

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