How Facebook Figures Out Everyone You’ve Ever Met

Facebook does what it can to underplay how much data it gathers through contacts, and how widely it casts its net. “People You May Know suggestions may be based on contact information we receive from people and their friends,” Facebook spokesperson Matt Steinfeld wrote in an email. “Sometimes this means that a friend or someone … [Read more…]

antvis/g2: G2 (The Grammar of Graphics)

G2 is a visualization grammar, a data-driven visual language with a high level of usability and scalability. It provides a set of grammars, takes users beyond a limited set of charts to an almost unlimited world of graphical forms. With G2, users can describe the visual appearance of a visualization just by one statement. Source: … [Read more…]

toineheuvelmans/Metron: Geometry, simplified.

Metron is a comprehensive collection of geometric functions and types that extend the 2D geometric primitives provided by CoreGraphics. Completely written in Swift, Metron allows you to express complex geometric calculations in very intuitive statements: Source: toineheuvelmans/Metron: Geometry, simplified.

Impostor syndrome – Wikipedia

Impostor syndrome (also known as impostor phenomenon or fraud syndrome or the impostor experience) is a concept describing individuals who are marked by an inability to internalize their accomplishments and a persistent fear of being exposed as a “fraud”. Source: Impostor syndrome – Wikipedia


我国上市公司的股票有A股、B股、H股等的区分。这一区分主要依据股票的上市地点和所面对的投资者而定。 Source: 什么是A股、B股、H股?


在华强北,稍微有些规模的手机回收商,一年会到2-3亿的流水。在罗叔刚进入二手手机行业时,一天交易几百台。而现在很多大一点的商铺,一天就交易几十万台,量级是指数级的变化。而二手机市场铺位的面积,据他估计已经增长50倍,并且还会继续增长。 Source: 年入上千亿,解密二手手机江湖的红与黑_36氪