Venkatesh Rao@vgrThis got some pretty good, thought-provoking answers. My own answer was a relatively banal 'calendar' but people took it in weird directionsQuote TweetVenkatesh Rao@vgr·Sep 25, 2017Riddle: space is to land as time is to ________?5:32 AM · Sep 26, 20171 Retweet3 Likes