This situation seems to be more along the lines of a Schrödinger's Cat
problem; the Heisenberg Uncertainty Priniciple
states that as your measurements of momentum
of an object become more and more accurate, your idea of the object's position becomes less so. Evidently the explanation for it is something about wave/particle duality
or something like that. Unless you're talking about the velocity of your dog
, this doesn't seem to be the right theory here.
Anyway, the dog wagging its tail is pretty much the same thing as the Schrödinger's Cat
problem. Strangely enough, so is the question "If a tree falls in a forest, and nobody's around, does it make a sound?
The setup runs thusly:
You put a cat
in a box, and you have some radioactive
material in there. If it decays, a Geiger counter
detects it and smashes a bottle of poison. If you look at the box from the outside, there is no way of knowing whether the material has decayed or not, and therefore whether the cat is alive or dead. The cat now exists in a ghostly quantum state
of being both alive and dead until you look in the box.
So, when not being detected by anything, dogs both do and do not wag their tails ... at the same time
Bum bum bum.