Originally Posted by Reality Check
I agree, but I think we can state the case even more strongly. The uncertainty principle in all its forms (the Heisenberg one being just one of many) is a direct mathematical consequence of a mathematical theory which makes no reference to biology. In fact, it doesn't even depend upon any measurements (where stuff like observers and consciousness are usually shoehorned in), it's a property of the wave function itself, at all times.
"To the layman, the philosopher, or the classical physicist, a statement of the form "this particle doesn't have a well-defined position" (or momentum, or x
-component of spin angular momentum, or whatever) sounds vague, incompetent, or (worst of all) profound. It is none of these. But its precise meaning is, I think, almost impossible to convey to anyone who has not studied quantum mechanics in some depth."
- David Griffiths, "Introduction to Quantum Mechanics"