A great many things have a natural tendency to collapsing as it's been pointed out, be it molecular clouds, etc. Unless the whole universe was spinning around (for which there is no evidence whatsoever) in acomplex 3D Whorl I think we can safely put SS Theory to rest, it served it's purposes in it's days but has little relevance today.

[mirth = ON]The only non-collapsing element in the universe is the price of Gasoline.[/stupid grin]

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The impossible often has a kind of integrity which the merely improbable lacks.