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全球著名黑客教授发出区块链失败警告:我们不应太狂热
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Topic: 全球著名黑客教授发出区块链失败警告:我们不应太狂热 (Read 83 times)
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全球著名黑客教授发出区块链失败警告:我们不应太狂热
May 02, 2017, 01:57:05 PM
#1
区块链,对大部分人来说可能是一个既熟悉又陌生的名词。之所以熟悉,是因为它和比特币紧紧的联系在一起;之所以陌生,是因为这个概念被提得太多,而真正理解其原理及意义的人可能并不多。
在不久前结束的麻省理工科技评论区块链峰会上,众多力挺区块链的业界大咖中,有一位显得不那么“和谐”:来自康奈尔大学的计算机学教授Emin Gun Sirer。 这位曾于 2004 年找到黑掉 FBI 网站方法的著名黑客,更多的从区块链的缺陷及其面临的技术挑战出发,试图警示人们:该技术还处于非常早期的阶段,不应过于狂热。
全球著名黑客教授发出区块链失败警告:我们不应太狂热,这项技术还很早期
图 │康奈尔大学的计算机学教授 Emin Gun Sirer
以下是由DT君整理的Emin Gun Sirer 教授演讲全文:
关于区块链的好处,以及可能对这个世界带来的改变已经被说的太多了,我在这里就不加赘述了。我想和大家分享的是人们如何应用区块链,以及区块链背后的技术支撑。
如果要从整体上把握区块链,首先要知道人类记录财富的方式。当人们看到黄金,马上想到的就是财富、价值,但这属于人类文化传统对其价值的认同。为什么唯独是黄金?有很多石头都比黄金更漂亮、更耐腐蚀,人们为何没选择这些石头?
当然,世界上还有其他类型物品被赋予过价值,比如贝壳,漂亮且难以伪造;以及中国古代的刀币,用铜铸造的特殊货币等。
我还见过一种比较神奇的货币。在一个南太平洋小岛上,当地居民用一种巨大的石头圆盘作为货币(如下图)。这种“巨石货币”存在的原因很简单:因为这个岛上找不到这么大的石头。如果你想买别人家的土地,那就把这个大石头硬币推到别人家门口放好,地就归你了。
有一个英国人类学家在 1963 年左右专门在这个岛上做过研究,这个岛上基本找不到这么大的石头,得从别的岛上开凿后再运回来。偶尔一不小心,这些石头硬币会从船上掉下来落入海中,很难再捞上来。
那么问题来了,落入海中的石头硬币到底属于谁?原来的主人肯定是花了力气去开凿并搬运它,岛上都是善良的居民,彼此也都信任。所以会达成这么一种交易:把手头现有的硬币,外加躺在海底那枚硬币的归属权都移交给卖主。
为了避免胡说八道的嫌疑,下面有张沉入海底的石头硬币图片(全场大笑)。
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