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> I've also heard someone suggest that you might be able to produce an Alcubierre-like configuration if you could make a compact dimension's radius larger within some local region.

Interesting, I hadn't heard of that one.

> But the point is (and I don't think you'd disagree), if this guy wants to be taken seriously, he needs to tell someone what he's doing.

I agree 100%.

PS: In the interest of full disclosure, a lifetime (AKA 14 years) ago, I did some research for NASA looking into such "negative mass solutions" in M-Theory that arise as a result of hep-th/9507022.




> I did some research for NASA looking into such "negative mass solutions" in M-Theory that arise as a result of hep-th/9507022.

Cool! The most informative thing about that to me is simply the knowledge that NASA has a history of investigating this sort of thing. Maybe it's a good thing if they keep a trickle of resources pointed in that direction, just in case there's something really there to be found. I hope they've got good people assessing whether it's worth it. (It's still odd for that sort of speculative work to be getting substantial press attention, though.)




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