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As Bitcoin virtual currency soars, bubble fears do too

Some call it the most famous pizza purchase in history: In May 2010, a programmer called Laszlo asked an online forum if anyone would buy him a couple of pies in exchange for 10,000 Bitcoins, an experimental online currency launched in 2009. As of Friday,Some call it the most famous pizza purchase in history: In May 2010, a programmer called Laszlo asked an online forum if anyone would buy him a couple of pies in exchange for 10,000 Bitcoins, an experimental online currency launched in 2009. "No weird fish topping or anything like that," he wrote.