Lazy Linking, 210th in an Occasional Series

Stuff I liked lately on the Internets:

210.1 The history of North America was paved, literally, by beavers bit.ly/2znanX1 @wired

210.2 We spend way more on lotteries than I would've guessed (~$600/yr per playing person) wapo.st/2DKdLP3 @washingtonpost

210.3 File under "automation kills AND creates jobs" - food-serving robots controlled by the severely disabled bit.ly/2PTjfxV @spoontamago

210.4 Artificial intelligence is alien intelligence, in that it'll think of solutions we never thought to think of  bit.ly/2Alel2a @margrev

210.5 Let graduates celebrate however they want to! bit.ly/2DUjz9x @chronicle