There would seem to be nothing more obvious, more tangible and palpable, than the present moment. And yet it eludes is completely. All the sadness of life lies in that fact. In the course of a single second, our senses of sight, of hearing, of smell, register (knowingly or not) a swarm of events, and a parade of sensations and ideas passes through our heads. Each instant represents a little universe, irrevocably forgotten in the next instant. Now, Joyce’s great microscope manages to stop, to seize, that fleeting instant and make us see it.