For instance, the likelihood of the laws of physics we have discovered so far to be correct even if incomplete is quite high as we have gathered piles upon piles of evidence that clearly point in a certain direction. A the current precision of our findings is so great that the GPS satellite networks is adjusted for minuscule time dilations to allow it to pinpoint anybody's location within a few meters. That level of precision is truly extreme as just being a few milliseconds off could lead to errors in the ball park of kilometers/miles. Sure, there is always a chance that we might be off base here, but even in that case, it is safe to say that the probability of special relativity being correct is at least 95%.
I'm curious to know how you feel about the variances in recordings of the speed of light over the years and the strong evidence that it is not a constant after all.
I bring this up as an example of a fundamental variable that was, and still is by many, not considered a variable at all. It's a great example of the importance of holding onto a scientific tenet for only as long as it is not surpassed by more accurate infomation.
RE: The Tao of Paradox | Part 1: The Only Thing I Know For Sure