@avisbaby he's being sarcastic.

Disgraceful! suggesting that the hindu notions of the small through to the large cycles of the universe are an ACCIDENT! The ancient Indian civilisations were very advanced even 5000 years ago. Their deep meditations on reality gave us many insights such as many fundamental mathematical formula. These are the people who invented the numbers 0-9, infinity and others.

I immediately noted the contemptuous mood of this presenter. For example his hands gesture when saying "corresponds" and then adding "no doubt by accident". Watching this, I now understand why the Vedas contain an inbuilt labyrinth of deluding theories to fool such insincere persons.

im religious n proud to be Hindu. LONG LIVE HINDUS

is it just me or does he sound like Mr Smith from 'The Matrix'?

No cosmologist can consider himself or herself untill the knowledge of cosmology of ancient hindu philosophy is taken on board,specially the concept of multiverse, death ,destruction and creation of universe.

Nice Video the Hindu faith is very beautiful!

I love that Sagan was so cool and into Indian Cosmology and Mythology.

Carl Sagan offers a interesting couple of scenarios which are both realistically developed theories. But the oscillating theory involves nothing with validation, only theoretically plausible phenomena. But the theory of continual expansion until a petering out death occurs, is supported by the validly observable entropic effect. The death of stars & other events have already been observed. The direction of everything in the universe is consistent with that entropy is universally ever increasing

Amongst living organisms on Earth, there even seems to be a macro & a micro entropy occurring. On the macro level, it's known that organisms used to be larger & lived longer in the past. On the micro, organisms are born, generate growth & eventually succumb to entropy & die. Everything suggests there will be a total death of all things"Though heaven & earth may pass away my word shall endure forever"