- cypherpunks-legacy - lists.cpunks.org

Re: Genetic engineering [was: RE: DNA of relative indicts man, cuckol ding ignored]
by John Kozubik 09 Jul '03

09 Jul '03

On Mon, 7 Jul 2003, Trei, Peter wrote: > Its when we get to 'fixes' to behaviour and personality > that things start to get very hairy. I fear that those in > power will use genetic engineering as they have used > every other tool at their disposal - weapons, states, > laws, and governments - to maintain their position at > the expense of the overall welfare of the species, by > allowing improvements only to their own descendents, > while requiring changes to those out of power which > make it harder for them to change their status. > > One scenario: > > "Mr & Mrs Smith: The No Child Should Fear Act of > 2015 requires that your proposed son have the > 'bullying' gene deleted if he is to attend publicly > funded schools. This is similar to the old requirements > for vaccination - we don't want your son to endanger > other children, do we? I have long believed that the constitution of the United States (through an ammendment) should include protection against involuntary mental tampering. It should, for instance, be a constitutional right for a child not to take their Ritalin, or for an insane man not to take his meds in order to stand trial (a recent court case whose outcome I do not know). Along this line, perhaps a more general anti-tampering ammendment could include protection against the coercion that you describe above. I feel that no parent should be forced to alter their child in any way - before or after the birth. ----- John Kozubik - john(a)kozubik.com - http://www.kozubik.com

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Re: Idea: The ultimate CD/DVD auditing tool
by Major Variola (ret) 09 Jul '03

09 Jul '03

At 02:55 PM 7/8/03 -0400, Billy wrote: >On Tue, Jul 08, 2003 at 01:26:46PM -0400, Trei, Peter wrote: >> While the ear can't hear above 22KHz, signal above that *can* >> effect the perceived sound, by heterodyne effects. For example, >> if you play a single tone of 28KHz, or a single tone of 30 KHz, >> you can't hear them. Play them together, however, and you >> *can* hear a beat frequency of 2KHz. > >Bullshit detector buzzing. >Is this *really* true? Have you tried it? I haven't, but it does ring true. You'd get 2 Khz as well as other intermodulation products. Standard EE stuff. You've read about the company trying to sell highly localized speakers? They modulate two intense ultrasound beams, and the air does the nonlinear mixing where they meet. In the audiophile, lower-intensity case, the ears' nonlinearity would do it. Interesting info, Peter.

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News: Wal-Mart cancels 'smart-shelf' trial (fwd)
by Jim Choate 09 Jul '03

09 Jul '03

http://zdnet.com.com/2100-1103_2-1023934.html -- ____________________________________________________________________ We are all interested in the future for that is where you and I are going to spend the rest of our lives. Criswell, "Plan 9 from Outer Space" ravage(a)ssz.com jchoate(a)open-forge.org www.ssz.com www.open-forge.org --------------------------------------------------------------------

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The Register - We've found the perfect solution to spam (fwd)
by Jim Choate 09 Jul '03

09 Jul '03

http://www.theregister.co.uk/content/55/31638.html -- ____________________________________________________________________ We are all interested in the future for that is where you and I are going to spend the rest of our lives. Criswell, "Plan 9 from Outer Space" ravage(a)ssz.com jchoate(a)open-forge.org www.ssz.com www.open-forge.org --------------------------------------------------------------------

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Re: [CI] Re: Finding collision resistant hash functions
by Major Variola (ret) 09 Jul '03

09 Jul '03

At 11:18 PM 7/7/03 -0700, Sarad AV wrote: >Lets say we are using SHA-1 and i hash 2^80 >messages.What I am looking for is a compression >function such that the chances of collision in the >message digest obtained by hashing these 2^80 messages >is collision free or very low probability of >collision.How do we make such a compression function? You don't need one with a good hash function. Consider a hash made out of a block cipher digesting the input. A block cipher has the property that any one bit difference in input will change half the output bits on average. There's nothing gained by increasing the input entropy (compressing).

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New Quantum Crypto Tested Over 100km, Sets New Record (fwd)
by Jim Choate 09 Jul '03

09 Jul '03

http://www.idg.net/ic_1326014_9720_1-5072.html -- ____________________________________________________________________ We are all interested in the future for that is where you and I are going to spend the rest of our lives. Criswell, "Plan 9 from Outer Space" ravage(a)ssz.com jchoate(a)open-forge.org www.ssz.com www.open-forge.org --------------------------------------------------------------------

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Re: Idea: The ultimate CD/DVD auditing tool
by Peter Fairbrother 08 Jul '03

08 Jul '03

okay I'm a bit pissed now. actually i'm raging pissed! Wheeee!!! the nyquist/lindquist/someone-else-who-was-pissed sampling theorems are based on the possibility of mathematically extracting frequencies from digital information in a STEADY_STATE situation. That doesn't mean that a speaker will properly reproduce those frequencies. Consider the dynamics of energy transfer. A digital signal at near-1/2-sampling frequency will have two datum points. The transitiion between them will be dramatic! the possibilities of energy transfer will not be comparable to an analogue sinusoidal waveform. And that's why good analogue is better then good digital. Doug Self etc. did some work on ultra-fast analogue systems in the mid 90's, and designed some amps that were and are regarded as pretty good - but afaik he didn't get the theory right. YAAAAHHH!-- Peter Fairbrother

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Re: Idea: The ultimate CD/DVD auditing tool
by Peter Fairbrother 08 Jul '03

08 Jul '03

I wrote: the nyquist/lindquist/someone-else-who-was-pissed sampling theorems are based on the possibility of mathematically extracting frequencies from digital information in a STEADY_STATE situation. That doesn't mean that a speaker will properly reproduce those frequencies. Consider the dynamics of energy transfer. A digital signal at near-1/2-sampling frequency will have two datum points. The transitiion between them will be dramatic! the possibilities of energy transfer will not be comparable to an analogue sinusoidal waveform. .... and i missed a bit or two. Consider the entropic uncertainty of a signal that has two-and-a-bit datums, against a sine wave. Start from zero, and go to such a waveform. Is it a constant-amplitude sine wave at frequency z? or a decaying sine at a frequency (z-at)? There's more, and it's to do with the limits of fourier and sampling theory. Say you have a wave at a frequency of z that's sampled according to nyquist theory. can you distinguish it from a wave of a frequency z - delta z? It can be done, but it takes a while, and a good few samples to do it. And a good analogue system will do it quicker. someone (hopefully not me, i haven't the time just now) can probably apply wavelet theory and get all this from steady-state theory, and tie it up in a nice package. -- Peter Fairbrother

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Re: Idea: The ultimate CD/DVD auditing tool
by Major Variola (ret) 08 Jul '03

08 Jul '03

At 03:14 PM 7/8/03 -0700, Tim May wrote: >As for hearing heterodyning in 28 KHz and 30 KHz signals, maybe. CD >players have brickwall filters to of course block such frequencies. >Some analog groove-based systems can have some kind of signal up there >at those frequencies, but not much. Regular vinyl is (was) also recorded with all kinds of filters, too, including the lowpass ones. If you cut vinyl (or metal) through a signal chain that didn't impose the filtering, perhaps the ultrasonics would remain, which is perhaps the analogophiles claim. You would need a special vinyl cutter though. Some of the filtering imposed on vinyl was to not fry the cutter, or otherwise deal with its inertia. (BTW, I thought your Monster USB cable was a prank.. its not.. some folks just don't get digital..)

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pegasus
by netkita＠earthlink.net 08 Jul '03

08 Jul '03

How do add the name of a person or group to the information folder that holds all my email addresses of persons that I email to on a regular basis . ` D

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