Read below, basically you said what I was trying to say, but better put.

Edit:
The observer part is the problem, they think if you consciously view something it changes the object/particle, when in truth its the packets of quanta, when viewing it, that bounces off the object particle that collapses the wave-function. In the box the wave-function would be collapsed due to the light, could be infrared, visible light leaked in, background radiation that would cause the collapse of the wave-function.

Well I think people tend to misinterpret Schrodinger's cat thought experiment, they think theirs a state where the cat is both alive and dead at the same time, that wave-function duality. Where only when you open the box does the wave-function collapses and that the cat becomes one or the other. This works as probability from the viewers standpoint, if your not looking at the cat it has a probability to be either dead or alive, but in truth the wave-functions have collapsed at some point unknown to the observer, the uranium atom has decayed causing the cyanide to be released, or not. The observer discovers the one or the other when he opens the box. Kind of hard to describe but the uncertainty isn't do to an intelligence observing the wave-function, if that makes sense.