We measure time through a mental framework trussed with two major stakes: memory and expectation. Memory is that spottiness that takes place behind the eyes: memory takes place in the cloistered theater that houses diffused still pictures. We file mental pictures that encapsulate our prior life into mental shelves for a wayward librarian to cull through and forward select recollection to the recall center whenever summoned. Expectations arise from thoughtful consideration of our future prospects in life.