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PostPosted: Fri Feb 17, 2006 4:47 pm 
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Joined: Thu Feb 16, 2006 12:12 am
Posts: 5
Mistle Rose wrote:
It depends on how it sets the random seed.

Exactly. To quote random.org's summary:

Quote:
Computer engineers chose to introduce randomness into computers in the form of pseudo-random number generators. As the name suggests, pseudo-random numbers are not truly random. Rather, they are computed from a mathematical formula or simply taken from a precalculated list. A lot of research has gone into pseudo-random number theory and modern algorithms for generating them are so good that the numbers look exactly like they were really random. Pseudo-random numbers have the characteristic that they are predictable, meaning they can be predicted if you know where in the sequence the first number is taken from.

"True" random numbers can only be produced by basing the seed (list of numbers the computer will produce) on something truly and entirely unpredictable: atmospheric noise, as on random.org, or thermal noise, et al.

I believe Flash bases the seed on the current computer time in microseconds, though I may be mistaken on that. If such is the case, the speed of your computer may affect how the seed is set, and how frequently you get the same emails.


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PostPosted: Fri Feb 17, 2006 6:19 pm 
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Joined: Wed May 11, 2005 4:53 am
Posts: 1004
Location: Riverside, NJ
Mbtiru wrote:
Mistle Rose wrote:
It depends on how it sets the random seed.

Exactly. To quote random.org's summary:

Quote:
Computer engineers chose to introduce randomness into computers in the form of pseudo-random number generators. As the name suggests, pseudo-random numbers are not truly random. Rather, they are computed from a mathematical formula or simply taken from a precalculated list. A lot of research has gone into pseudo-random number theory and modern algorithms for generating them are so good that the numbers look exactly like they were really random. Pseudo-random numbers have the characteristic that they are predictable, meaning they can be predicted if you know where in the sequence the first number is taken from.

"True" random numbers can only be produced by basing the seed (list of numbers the computer will produce) on something truly and entirely unpredictable: atmospheric noise, as on random.org, or thermal noise, et al.

I believe Flash bases the seed on the current computer time in microseconds, though I may be mistaken on that. If such is the case, the speed of your computer may affect how the seed is set, and how frequently you get the same emails.


Yeah, this came up in a discussion I had with friends a few weeks ago, that there's actually nothing at all "random" about random shuffle generators, and how if you knew the algorithms used, you could predict what came next. That's probably as good an explanation on how "random" is done in Flash specifically as there is.

Of course, our whole random discussion went into a much more philosophical direction, on how absolutely NOTHING in the world is random at all, and everything you say or do, no matter how strange, is always influenced by something else you've thought or experienced. But that's for another thread.


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PostPosted: Fri Feb 17, 2006 8:37 pm 
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Joined: Tue Jan 17, 2006 1:25 am
Posts: 4266
Location: Blowing my brains out through my nose
I know this isn't about the emails, but it happens with my Ipod, like my friend mentions a song, or I see it online, or whatever, and it reads my mind.

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 Post subject: random button
PostPosted: Wed Feb 22, 2006 3:16 am 
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Joined: Tue Feb 21, 2006 10:07 pm
Posts: 133
Location: by the station
I think it's an important to have a random button.
sometimes I just get bored, and just pressing the random button is much faster than listening to strong bad or the main menu do it.

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