Mef wrote:amnal wrote:This argument is absurd...
1) You make the unjustified implication that we all must personally be able to verify the values of fundamental constants. I don't see why you would think this.
2) You make the nonsense statement that one cannot understand a system of units without having understanding of the method by which these units are derived in the first place. This is clearly not the case.
3) The 'average width of a thumb' thing makes little sense to me. It suffices in the short term, for basic tasks, but...well, there are horrendous problems with using that kind of measurement in the modern world. Who is measuring all these thumbs? What happens when the average width of them changes? If we keep the old value, how do we make sure we don't lose track of what it is? And if you keep an old value like that, it's arbitrary and unmeasurable (which you seem to think is a bad thing) any way, so you haven't gained anything. It is far more useful to have values that can be measured accurately at any time because they are tied in to fundamental universal constants.
I fear you completely missed the point. Of course the argument is absurd, that's what I was trying to get at. I was taking the old tried and true arguments you see over rulesets and moving them into a different context. Personally, if I went back to the "rules of the metric system" I would never be able to find out how long a meter is. I would be unable to measure it. The strict definition of a meter to an average everyday person has no use. Of course in practice no one worries about these things, and when they do matter you have people who are familiar with the specifics you can rely on (which is the entire point I was getting at). It is all to common to hear the claim Japanese rules cannot be understood by a beginner and are therefore unusable. Things like moonshine ko, 5 points without capture, etc are brought up in this context...it is comparable to saying you can't measure something in feet because you don't understand NAD27 or you can't actually measure something using a meter before you know quantum mechanics (otherwise how can you know what a meter is?).
In reality, most of us can get by with most of what we do with rough approximations...likewise most of us can play go with our friends without worrying about whether we need 2, 3, 4, or 17 passes at the end of a game in order to properly confirm that it has ended.
Oh, I see.
In that case, you took your analogy too far