Venkatesh Rao@vgr·Oct 13, 2017This explains why I've never been a good sleeper. I'm 40% a mapmaker.Quote TweetScience News@ScienceNews·Oct 13, 2017Grid cells don’t sleep. http://ow.ly/yFvS30fPnP7214
A. L. V.@theartlav·Oct 13, 2017Replying to @vgrThat's surprising for someone who is supposed to be not good at visualization.2