"Good! I'm not sure how to explain what I was looking for, there, or why I wasn't already satisfied with the earlier answers, but it's something like - the difference between thinking in Taldane, and justify those thoughts afterwards using the language of Probability, versus starting to see in probability distributions, and putting those thoughts into Taldane."
"With respect to the last point: yep, even if you can't measure precisely, you can still go looking for some other place where the major theories come apart. The thing is, that often requires more extreme conditions, or weird conditions. If you can measure time using clocks accurate to one part in ten million billion, sixteen digits in base 10, you can notice a clock ticks very slightly faster after you raise it from waist height to head height. With less accurate clocks you'd have to find much much more extreme, expensive conditions to start losing ten million billion times more time from the same phenomenon, so you could measure missing seconds. Even Civilization couldn't do that; the energies are too high."
"Still, that segues well enough into my next question. Why try to predict the timing of my next response? Why not just observe it passively and consider what it meant only after the fact?"