This is an interesting, thought provoking article on the cyclical nature of existence we have described here on Vault-Co. It is possible what we see reflected in these incredibly ancient religious traditions is some very solid truth that is being conveyed to us in allegories. If we accept these things as myths that served as vehicles for the communication of knowledge via oral routes they are very useful in forming a bigger picture of the world that fits the evidence.
One thing I derived strongly from reading a lot of english translations of the Vedic texts is the notion of the remnant - in all of these cycles there are always these mythical figures who seem marked by providence to survive. They seem timeless and strongly demarcated from the rest of their generation and are the very archetype of the "survivor" that Carl Jung spoke of.