David_Gerard comments on Tell Your Rationalist Origin Story - Less Wrong

30 Post author: Eliezer_Yudkowsky 25 February 2009 05:16PM

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Comment author: David_Gerard 01 January 2012 02:10:48PM *  2 points [-]

This is, in practice, a form of equivocation between epsilon uncertainty and sufficient uncertainty to take seriously as an argument.

  1. There is technically no such thing as certainty.
  2. Therefore, the uncertainty in [argument I don't like] is non-negligible.

Step 2 is the tricky one. I suggest reviewing But There's Still A Chance, Right? Humans are, in general, really bad at feeling the difference between epsilon uncertainty and sufficient uncertainty to be worth taking notice of.

Comment author: FeatherlessBiped 01 January 2012 05:10:26PM 2 points [-]

I reviewed your link--thanks, that was interesting.

Maybe we're in agreement. Let me try a more audacious assertion...

All I was saying was that practical demonstration or persuasion takes place within an unquestioned frame of reference. For purposes of the topic at hand, I would say, for example, that using the available evidence, I could convince 9 of 12 jurors under American rules of evidence and jury instructions applicable to civil trials, that Jesus of Nazareth was a flesh and blood historical figure. I think I could do this every week for a year and win 90% of the time. If we change the rules to "establish it beyond a reasonable doubt to 12 of 12 jurors", then my success rate goes way down, obviously.

(Of course, I am assuming that I make no intentional misrepresentations and call only expert witnesses with recognized technical qualifications and unimpeachable character. I.e., no "funny stuff".)

In other words, I am claiming to not be anywhere in the neighborhood of epsilon.

Comment author: David_Gerard 01 January 2012 06:40:46PM *  0 points [-]

I'm almost entirely unconvinced (somewhat greater than epsilon) that's a useful measure - humans can be convinced of just about anything. But, an upvote for suggesting a measure. Still thinking of what I'd accept as a measure.