Andy, I like your suggestion about exclamation points; I hope you'll post it as a comment after I take the essay public. (Has anyone undertaken quantitative rhetorical analysis of internet debates? I suspect that there's some data-mining that interested linguists could do.) Your remark about people who admit that they'd lose more often than they'd win but still insist that the odds are 50-50 remind me of the results of a poll I administered to students in one of my classes last fall. After reading my essay on .999..., most of them averred that the sequence .9,.99,.999,... converges to the limit 1, but denied that .999... is equal to 1, even though mathematicians take the former assertion to be the definitional meaning of the latter. I'm going to have to write a follow-up essay sometime to address that. Jim On Wednesday, January 6, 2016, Andy Latto <andy.latto@pobox.com> wrote:
I don't know if it's useful for your blog post, but here's an observation I made based on meta-analysis of MH debates (which erupted periodically on several USENET groups I used to read; sci.math, rec.puzzles, rec.gambling, sci.logic, etc...)
I was able to read the arguments on both sides, and evaluate them on their merits to figure out which was correct. However I asked myself the question,
"Suppose I was not able to understand the arguments well enough to convince me that one side was correct and one was incorrect; was there a way I could figure out which side was right without understanding the mathematics myself?"
It turns out there were two very reliable ways:
1. The people on one side of the debate used ALL CAPITAL LETTERS and EXCLAMATION POINTS way more often than the other!!!!
2. The offers to bet on the results of an experiment designed to determine which side was right were always made by proponent of the same side (the non-capital letters side).
This is more along the lines of "how to figure out whether you are wrong" than "how to be wrong", so maybe it's not relevant to your article, but I thought you might find it interesting.
I've talked about this often in the past, but only just now realized that my observation on part 2 is a bit of a cheat. Many times the offer to gamble was met with comments of the form
"Yes, I agree that if I gambled on it, gaining $6 when switching lost, and losing $4 when switching won, I would lose all my money; but that has nothing to do with probability; the probabilities that it's behind each door ARE STILL BOTH 1/2!"
I understood enough math to understand that this is contradictory, and reflects a lack of understanding of the meaning of probability. If I didn't have this amount of subject matter understanding, I couldn't really use technique 2 for deciding who was right. The capital letters heuristic still works fine, though.
Andy
On Wed, Jan 6, 2016 at 1:01 PM, James Propp <jamespropp@gmail.com <javascript:;>> wrote:
I've posted a draft of my essay "How to Be Wrong" and would appreciate comments:
https://mathenchant.wordpress.com?p=482&shareadraft=568d547f0934f
If you send comments via WordPress, keep in mind that they're anonymous by default, which may suit you or may not.
I plan to publish, as always, on the 17th.
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