Mike Williams wrote:
> 4. It's a crackpot theory anyway.
Actually, respectable physicists have been tossing similar theories
around, so you're in good company ^.^
> I don't really expect it to explain
> everything. It does, however, make falsifiable predictions. It predicts
> that you'll never be able to observe any small clumps of dark matter,
> because of the effect of the previous point. It predicts that dark
> matter doesn't interact with the weak nuclear force.
It also predicts that gravity disobeys the inverse square law (falls off
more steeply with distance) on scales smaller than the brane separation.
So in your case, gravity would disobey the inverse square law on scales
smaller than 1e4 light years... which we know isn't the case.
As I understand it, it's been tested in the laboratory and found to hold
down to on the order of a millimeter, which doesn't rule out brane
theories, but does rule out ones with brane separation greater than that.
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