Any claims that some dead authority figure supported some position should always be met with great skepticism. As in both sides of the religion/atheism debate claim Einstein was supportive of their position. One can generally find some quotation or citation which taken out of context would appear to support just about any proposition one would wish to make.
Any argument from authority is bullshit. Argument from dead authority is bullshit squared. I am certain without evidence that Sagan said something like "if any creed is not 100% bullshit, vedic cosmology might be a candidate". And he said that in the sense that Buddhist like the Dalia Lama are willing to modify their beliefs to accommodate new evidence.
But at some point the dogma and the science converge and you are left with the science. That's the same as withholding belief pending evidence. You get to the same conclusion without scrolls and incense.
Okay, to be completely fair I watched the first part of the YouTube video. I stopped it right after they made the claim that the Iron Pillar of Dehli "was beyond the capability of modern metallurgists". That's probably why "wiki Iron Pillar of Dehli" gets you to the first (and for me the last) EPIC FAIL. Not only modern metallurgists but modern 4th graders can find out exactly how the thing was made down to the atoms. Basic science today was leading edge science once upon a time. These craftsmen were ahead of their time but we have caught up. Mystery solved.
If you want to hear Sagan in his own words -- not a wishful reinterpretation by some faithful Joe with a holy axe to grind go here:
Thanks @Kirk Holden for the 2nd reply, researching and replying. I saw the video and found its source. http://www.youtube.com/view_play_list?p=DC50E11C4B81F76B&page=1. It is on episode 10/13. Am now seeing the entire series, very interesting. I had no trouble with the Iron Pillar it has got nothing to do with any religion. It only shows that a few of our metal forging ancestors were brilliant.
The Big Crunch as viewed by Vedic Cosmology is probably not gonna happen as the evidence is against it(Increasing rate of expansion). Vedic cosmology's timescales differ by x10. Got it pretty close, dunno how but would definitely like to know.