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    This Is How Your Brain Works

    Quick, what's 23 times 46? No time to think, your mind has already figured it out.

    [More from Mashable: This Little Girl Would Kick Your Butt]

    Confused? No need for an explanation, your mind is two steps ahead of you.

    Sometimes your brain is working so fast it's getting everything wrong. And sometimes it's working so well, it makes you blind.

    [More from Mashable: Look at These 10 GIFs and You Might Actually Learn Something]

    It doesn't make much sense, until ASAPScience lays it out. It all boils down to the fact that our mind is constantly playing tricks on us, but for our own good. This video explains that without a system of "slow" and "fast" thinking, our brains would be exhausted from menial tasks and we'd treat brushing our teeth like long division.

    So watch the video above to learn just how smart and dumb your brain can be at the same time.

    Click here to view the gallery: 20 Videos Under 20 Seconds

    Video via YouTube, AsapSCIENCE. Photo via iStockphoto, cosmin4000.

    This story originally published on Mashable here.

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