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VincentYu comments on Open Thread, November 1-15, 2012 - Less Wrong

4 Post author: OpenThreadGuy 02 November 2012 02:11AM

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Comment author: gwern 05 November 2012 07:43:17PM 3 points [-]

I am close to finishing a new essay: http://www.gwern.net/Death%20Note%20script

If anyone could read it and check for errors, especially in the parts using Bayesian concepts, I'd appreciate it.

Comment author: VincentYu 05 November 2012 09:09:12PM 4 points [-]

Are you reading the creation date with Evince as your PDF viewer? The timezone reported by Evince for the file seems to be buggy as it simply returns the timezone that it is currently in.

Comment author: gwern 05 November 2012 10:24:53PM *  4 points [-]

Damn. You have a point there, well done: I've examined closely the creation date with pdftk dumping the raw metadata, and while it turns out the datestamp can include timezone information, this one doesn't because it is suffixed with 'Z' indicating that it is UTC time. Looking at the API docs for the listed creating program, it turns out that the makers were lazy and just used a default Java library - which doesn't support timezones by default and is always UT time! So it seems Evince did mislead me.

So I guess I have to excise that entire section and update all the numbers... I'm not happy about this (especially since I put multiple hours into trying to pin down when the Parlapanides moved to California, to check that the analysis was right even on the face of it).