Do you think time flows or is static? Is time continuous or quantized? Is the direction of time uniquely defined and irreversible? Is time just a figment of our imagination? FQXI has an essay contest about the nature of time. All these points of view are championed by various authors, (some quite well known). It is too late to enter the contest, but anyone can vote on the essays (up until january 1st 2009) that seem to make the most sense.The current leader is an essay by Carlo Rovelli advancing the notion that time does not exist at the quantum level. Do you agree? Read the essays and cast your vote here!