The Vaughan Williams Possibility Theorem

If something might or might not exist, but is unobservable, it is more likely to exist than something which can be observed, with any positive probability, but is not observed. If something might or might not exist, it is more likely to exist if it is less likely to be observed and is not observed than something else which is more likely to be observed, and is not observed.

Further Reading and Links

https://selectnetworks.net

See application of the VW Possibility Theorem to the Black Raven Paradox. Link: https://leightonvw.com/2014/12/11/seeing-a-blue-tennis-shoe-makes-it-more-likely-that-flamingos-are-pink/

See application of the VW Possibility Theorem to a unified theory of science. Link: https://leightonvw.com/2014/11/28/430/

See application of the VW Possibility Theorem to the Boy-Girl Paradox

https://leightonvw.com/2014/11/27/the-boy-girl-paradox/