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25% of the people have a 4th cone and see colors as they are

You see less than 20 color nuances: you are a dichromats, like dogs, which means you have 2 types of cones only. You are likely to wear black, beige, and blue. 25% of the population is dichromat. You see between 20 and 32 color nuances: you are a trichromat, you have 3 types of cones (in the purple/blue, green and red area). You enjoy different colors as you can appreciate…

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The secret life of a public library security guard

This made me think of a college friend who regularly Facebooks anecdotes about his job as a librarian, and a former student who produces a radio drama about a hard-boiled, square-jawed time-traveling librarian. Enter the library intoxicated and you’ll get a talking to — the warning — and be asked to leave for the day. Petrovich understands that “everybody gonna have booze and come in library.” But if drunkards try…

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Notes on watching “Aliens” for the first time again, with a bunch of kids

“This movie has so many cliches in it,” a boy said when Colonial Marines disembarked the drop ship and made their way through rainy darkness to enter the alien-infested colony. My son told him, “This movie was made in 1986. It invented all the cliches.” Another of his friends was impressed by the “personal data transmitters” implanted in the colonists—impressed that someone had thought of that back in 1986. –MZS |…

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Google’s AI could probably beat you at Atari

What’s significant in this story is not that a computer can perform tasks more efficiently than a human, but that the computer in question is not deploying a pre-programmed strategy; it is instead teaching itself how to win. When IBM’s Deep Blue computer defeated chess grandmaster Garry Kasparov in 1997, and the artificially intelligent Watson computer won the quiz show “Jeopardy!” in 2011, these were considered impressive technical feats, but…