Its October, and everyone knows what that means: time to revisit the single best introduction to logic gates ever created! XNOR remains the spookiest gate. Work by @38mo1. t.co/R94klZRu7m

The Internet is rotting. This chart shows the percentage of links from all New York Times articles that still work. Over 25% of the links embedded in articles just seven years ago & 60% of older links, are now broken. And tweets & posts are more ephemeral! cjr.org/analysis/linkrot-content… t.co/qg3erzTkq2