From: Paul Lalonde <plalonde@telus.net>
To: weigelt@metux.de,
Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] thoughs about venti+fossil
Date: Thu, 6 Mar 2008 11:45:19 -0800 [thread overview]
Message-ID: <47D049CF.5080305@telus.net> (raw)
In-Reply-To: <20080306061637.GC18329@nibiru.local>
You don't have to care about the chance of a collision. Work out the
expected value of the collision by estimating the maximum that might
cost you. I'll go nuts, and claim that a collision will cost *one
BILLION* dollars.
Not checking for a collision, assuming a 2**-90 collision rate (which is
a huge over-estimate, but that I've seen bandied about here), you wind
up with an expected dollar cost of 2**-60 dollars on that collision.
I don't pick up pennies in the street. I certainly won't dedicate any
more brainpower to this silliness.
Paul
Enrico Weigelt wrote:
> * Bruce Ellis <bruce.ellis@gmail.com> wrote:
>
>> it's even sillier, if everyone bought 1,000,000 times as many tickets
>> guess how that would change the probabilities. not at all!
>>
>
> The main problem is: statistics is not reliable. You just can
> guess how many times approx. something will happen if you take
> a really large number of tries. You can never be sure for a
> single case.
>
>
> cu
>
next prev parent reply other threads:[~2008-03-06 19:45 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-05 4:00 Enrico Weigelt
2008-03-05 4:11 ` Roman Shaposhnik
2008-03-05 4:43 ` erik quanstrom
2008-03-05 5:09 ` Roman Shaposhnik
2008-03-05 5:52 ` Enrico Weigelt
2008-03-05 6:24 ` geoff
2008-03-05 6:35 ` Taj Khattra
[not found] ` <7f575fa27b41329b9ae24f40e6e5a3cd@plan9.bell-labs.com>
2008-03-06 4:04 ` Enrico Weigelt
2008-03-06 4:13 ` Bruce Ellis
2008-03-06 4:15 ` andrey mirtchovski
2008-03-06 4:31 ` Bruce Ellis
2008-03-06 6:16 ` Enrico Weigelt
2008-03-06 18:50 ` ron minnich
2008-03-06 19:43 ` Charles Forsyth
2008-03-06 19:45 ` Paul Lalonde [this message]
2008-03-06 20:18 ` Bruce Ellis
2008-03-06 21:39 ` Paul Lalonde
2008-03-08 9:06 ` Enrico Weigelt
2008-03-06 22:10 ` Martin Harriss
2008-03-06 6:40 ` Enrico Weigelt
2008-03-06 14:35 ` erik quanstrom
2008-03-06 14:58 ` Tom Lieber
2008-03-06 15:09 ` Charles Forsyth
2008-03-06 17:09 ` Robert Raschke
2008-03-10 10:19 ` sqweek
2008-03-10 12:29 ` Gorka Guardiola
2008-03-10 13:20 ` erik quanstrom
2008-03-10 19:00 ` Wes Kussmaul
2008-03-10 19:27 ` erik quanstrom
2008-03-10 20:55 ` Bakul Shah
2008-03-11 2:04 ` Wes Kussmaul
2008-03-11 2:10 ` erik quanstrom
2008-03-11 6:03 ` Bruce Ellis
2008-03-10 16:18 ` Russ Cox
2008-03-10 18:06 ` Bruce Ellis
2008-03-10 18:31 ` Eric Van Hensbergen
2008-03-10 18:40 ` Bruce Ellis
2008-03-10 18:46 ` Geoffrey Avila
2008-03-10 20:28 ` Charles Forsyth
2008-03-10 21:35 ` Charles Forsyth
2008-03-06 9:54 ` Wilhelm B. Kloke
2008-03-08 9:37 ` Enrico Weigelt
2008-03-08 9:57 ` Bruce Ellis
2008-03-08 10:46 ` Charles Forsyth
2008-03-08 15:37 ` erik quanstrom
2008-03-06 4:40 ` cummij
2008-03-06 5:15 ` Bruce Ellis
2008-03-06 5:40 ` Uriel
2008-03-06 5:55 ` Bruce Ellis
2008-03-11 18:34 ` Uriel
2008-03-06 12:26 ` erik quanstrom
2008-03-05 5:04 ` geoff
2008-03-05 8:43 ` Charles Forsyth
2008-03-05 9:05 ` Gorka Guardiola
2008-03-05 14:33 ` Russ Cox
2008-03-06 12:39 ` Enrico Weigelt
2008-03-06 16:58 ` Russ Cox
2008-03-06 18:16 ` andrey mirtchovski
[not found] ` <a553f487750f88281db1cce3378577c7@terzarima.net>
2008-03-06 5:38 ` Enrico Weigelt
2008-03-06 9:44 ` Joel C. Salomon
2008-03-05 14:03 erik quanstrom
2008-03-05 16:00 ` Russ Cox
2008-03-06 19:09 Brian L. Stuart
2008-03-06 19:50 ` Charles Forsyth
2015-04-21 18:30 hruodr
2015-04-21 19:46 ` Russ Cox
2015-04-23 7:21 hruodr
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