The same holds for certain sorts of people, regretfully. It is much later, with repeated instances of confirmation and disconfirmation, that the animal learns to recognise the relevant stimuli among the rest of experiences. Thus, a cat who has caught a mouse in the corner will look for a mouse in the same corner for quite a while, though there may be no trace of the mice frequenting the place. The ability to analyse what occurs between one's action and the environment's response to that action is a distinctive feature of humans as conscious beings. The sine is an even function.
All odd numbers are prime.
Obviously, all odd numbers are prime. Consequently, anything in the world is nothing but my observation. This scheme is known as empirical induction, and it may be useful to generate hypotheses, but it certainly cannot be used in an argument. Physical theories are flexible, and they allow various interpretations, some of which may be more suitable than the others. The attempts to interpret physical results in a subjectivist way have nothing to do with physics, and, in general, they are politically prompted.