Even if you're logged out, one engineer told me, there are 57 signals that Google looks at -- everything from what kind of computer you're on to what kind of browser you're using to where you're located -- that it uses to personally tailor your query results.
一位工程师告诉我，即使你退出帐号， 还会有57种信号 可供谷歌参考-- 几乎所有的信息：从你使用的电脑型号 到你用的浏览器 到你所在的位置-- 谷歌利用这些为你定制出个性化的查询结果。