Yet there is still no way that they can be assured that there isn't some significant, yet undeterminable systematic influence affecting their observations.
It would be illogical to expect to observe anything without affecting it. Its just that in our everyday measurements the uncertainty gets buried in the everpresent noise.
??? Sorry, I'm not sure I'm quite following you.
It would be illogical to expect to observe anything without affecting it. Its just that in our everyday measurements the uncertainty gets buried in the everpresent noise.
It's more than that -- it's that the magnitude of the uncertainty is also much smaller (Planck's constant) than the quantity being measured. Even with much higher precision, the error introduced is insignificant in such cases.