We wouldn't bother to observe if we weren't confident it could get us anything or anywhere. There is no mystery here, b_sharp.
You wrote: "...observation is that when we perform tests, even such basic tests as starting your car in the morning, the results are consistently and reliably the same."
To which all I can say is: You have more confidence in your car than I have in mine, these days. :^)
There is no universal law that says your car must start up when you turn the ignition key. And when it comes to cars not starting up in the morning, may your "regularity and predictability" be damned!!!
IOW: There is no certainty in this world, all your theories and expectations notwithstanding!
Capice???
IOW: There is no certainty in this world, all your theories and expectations notwithstanding!
If your car does not start in the morning, who you gonna' call: a mechanic, a witch doctor, or a philosopher?
The answer to this question will provide a large hint to which "theory" you should follow when the rubber hits the road (or fails to hit the road in this case).