Hi George,
Thanks. I'm not suggesting that's carved in stone, or something that should be viewed as "fact". Rather, what it shows is that the information we have, once we take into account a bit of between clock error, and a tendency to overestimate, etc, results in a time line we can build backwards from Dr. Blackwell's stated time using movements to estimate "event durations", and one or two duration estimations. Then we can compare the times those durations suggest, and compare them to the times people said they happened. And so far, all of the times they said they happened, (and all of the durations that result from our puzzle piece fitting when compared to people's stated estimates of those durations) fall within an acceptable margin of error. None of the clocks are considered more than +-7.5 out of sync with Dr. Blackwell's watch, for example. None of the intervals the recreation produces are outside of the expected margin of errors for the stated estimated duration. Fanny's four minutes is the only case where the recreated duration is near the long end of the range, but her testimony has been difficult to comprehend as she's stated it, and also, sooner or later, when you test enough things, you'll get a finding that's a bit "rare". We get one, and in the overall evaluation, that's not bad. It also could be argued to have isolated the problem part of her statements, it's only the 4 minute wait between going in and the pony cart that looks out of place, the rest fits in pretty well.
Oh, and after having finished all of this, I realised I set Dr. Blackwell's arrival at 1:16:00! Obviously, his statement includes a start time anywhere between 1:16:00 and 16:59 (presuming his watch doesn't have a seconds hand). I should probably, therefore, have set his arrival to be 1:16:30 (shifting all times by 30 seconds). I decided against it because, in the end, that does nothing except change our estimates about how well, or not, other clocks might be synchronized with his.
And I have to thank you again for your recreation of Deimshutz's activities. Without that information, I couldn't really fit him in without making up a duration for it, and making something like that up destroys the validity of the process. With it, I felt more confident to tackle the problem. Personally, I was pleasantly surprised at how nicely the statements started coming together actually. The James Brown passing just after the time estimated for Fanny going inside, which were worked out independently, was very satisfying. Usually I would expect to see some of the recreated times show some problems (i.e. FM goes in just after JB goes past), which can happen with estimations of course, so if the rest looks really solid one might just conclude "close enough is good enough". But it's nice when it just speaks for itself.
- Jeff
Originally posted by GBinOz
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Oh, and after having finished all of this, I realised I set Dr. Blackwell's arrival at 1:16:00! Obviously, his statement includes a start time anywhere between 1:16:00 and 16:59 (presuming his watch doesn't have a seconds hand). I should probably, therefore, have set his arrival to be 1:16:30 (shifting all times by 30 seconds). I decided against it because, in the end, that does nothing except change our estimates about how well, or not, other clocks might be synchronized with his.
And I have to thank you again for your recreation of Deimshutz's activities. Without that information, I couldn't really fit him in without making up a duration for it, and making something like that up destroys the validity of the process. With it, I felt more confident to tackle the problem. Personally, I was pleasantly surprised at how nicely the statements started coming together actually. The James Brown passing just after the time estimated for Fanny going inside, which were worked out independently, was very satisfying. Usually I would expect to see some of the recreated times show some problems (i.e. FM goes in just after JB goes past), which can happen with estimations of course, so if the rest looks really solid one might just conclude "close enough is good enough". But it's nice when it just speaks for itself.
- Jeff
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