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A Brief History of Scientists Hunting for Time Travelers

Via Gizmodo: ‘Time travel is possible—or at least a lot of serious physicists say so. Its probably not possible to pull it off in a souped-up Delorean, but there are wormholes, Tipler cylinders, and other Einstein-inspired theories for how it could work. Which raises the question: Why havent we met any visitors from another time?It sounds like a silly question, but its one that many scientists actually take very seriously. Meeting someone from the future would, of course, serve as definitive proof that we can indeed travel through time, and that would be a quite a simple way to solve a huge scientific riddle. So its no surprise that a handful of enthusiasts and experts have staged experiments in order to attract the time travelers that could be hiding among us.

One of them is Stephen Hawking. The renowned physicist totally believes time travel is a scientific possibility, and even says he knows how to build a time machine. He also famously wondered, “If time travel is possible, where are the tourists from the future?” Its a good question. Heres how weve tried to answer it…’

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Nicholas Kristof: The Diversity of Islam

Via NYTimes.com‘A few days ago, I was on a panel on Bill Maher’s television show on HBO that became a religious war.

Whether or not Islam itself inspires conflict, debates about it certainly do. Our conversation degenerated into something close to a shouting match and went viral on the web. Maher and a guest, Sam Harris, argued that Islam is dangerous yet gets a pass from politically correct liberals, while the actor Ben Affleck denounced their comments as “gross” and “racist.” I sided with Affleck.After the show ended, we panelists continued to wrangle on the topic for another hour with the cameras off. Maher ignited a debate that is rippling onward, so let me offer three points of nuance…’