Lost Epidodes

I've alway been pretty interested in Lost, but I've never had the time to devote to it to properly appreciate it. But whenever I watch an episode i'm always impressed with the complexity of each episode. There is a storyline and then so much more going on. Episodes of lost are such a rich text, especially the episodes "The Constant" and "The Variable" that we watched for class this week. The questio. Of time travel is so interesting to think about. In episodes of lost you don't really know if what you are watching actually happened. I think how we percieve time is kinda like that. How do we know what is real and happening right now? What is consciousness?