Instead of revealing any of this to the jury, Hunter and Moore tallied Friedmann’s vandalism. They calculated that, between the expenses of replacing all the locks and keys in the jail, paying overtime to staff who reviewed footage, and renting jail space (from C.C.A.) for inmates who couldn’t move in because of the investigation, Friedmann had cost the sheriff’s office the equivalent of $1.5 million—six times the figure needed to convict.
这造就了一个有趣的经济学现象，在底层技术开源的情况下，价值并不自动流向写技术的人，而是流向解决"最后一公里"问题的人。帮用户完成从"想用"到"能用"的那一段距离，成了真正的商品。
。体育直播是该领域的重要参考
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