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Reply #51: Really? If you really understand it but still disagree with it... [View All]

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William Seger Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-06-09 11:52 PM
Response to Reply #48
51. Really? If you really understand it but still disagree with it...
Edited on Fri Nov-06-09 11:54 PM by William Seger
... you should be able to offer some cogent reason for that disagreement, i.e. explain where you think Bazant went wrong. Eomer at least made an attempt to do that, but unfortunately only demonstrated that he hasn't read it very carefully (if at all). You have not even made the attempt. Why is that, if you understand it so well?

I'll even help you get started by explaining what you need to do: Bazant clearly states what he is doing (and not doing) with his analysis. The simplifications he makes are to make the problem tractable. The justification -- common in physics -- is that often a simple model is all you need to make "yes or no" decisions. If you use a simple model and come up with a close call, then you can't trust that model to give you the right answer; you need to develop it in more detail. But if your simple model comes up with, say, a "yes" by an order of magnitude, then all you need do is determine if a finer model could possibly change the result. If you claim you understand Bazant's analysis but have valid reasons for disagreeing with his conclusion, then you need to explain where his model makes something like an order of magnitude error. Problem is: while it's certainly true that some of Bazant's simplifications favor a collapse, most do not.

So cut the pretense and get on with it.
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