All right...(no offense, Grey)...we have black holes, and white holes postulated, is there anything about grey holes somewhere?...a combination of the two? pete

never mind, should have just Googled it,....see:http://adsabs.harvard.edu/abs/1989Ap&SS.159..301T

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A third rate theory forbids
A second rate theory explains after the fact
A first rate theory predicts...A. Lomonosov