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Comment Re:From TFA: bit-exact or not? (Score 1) 172

There used to be a web page called "Your Eyes Suck at Blue". You might find it on the Wayback machine.

You can tell the luminance of each individual channel more precisely than you can perceive differences in mixed color. This is due to the difference between rod and cone cells. Your perception of the color gamut is, sorry, imprecise. I'm sure that you really can't discriminate 256 bits of blue in the presence of other, varying, colors.

Comment Re:From TFA: bit-exact or not? (Score 5, Insightful) 172

Rather than abuse every commenter who has not joined your specialty on Slashdot, please take the source and write about what you find.

Given that CPU and memory get less expensive over time, it is no surprise that algorithms work practically today that would not have when various standards groups started meeting. Ultimately, someone like you can state what the trade-offs are in clear English, and indeed whether they work at all, which is more productive than trading naah-naahs.

Comment Re:Teachers (Score 1) 240

Different AC here. ... P.P.S.: Fuck the last 5 years of UX "professionals" who think ... menu options should change depending on which options the software decides are more frequently used. Neither group knows anything of muscle memory because neither group has been in the industry long enough for it to matter.

Although, to be fair to UX "professionals" there is no muscle memory so powerful that it cannot be compromised with sufficient alcohol. Still getting 80wpm tonight. But somehow missed the post-anon button. Sometimes the UX "professional" doesn't have to move the clickbox. It's moving on my system, though!

Comment Re:Teachers (Score 1) 240

My touch typist teacher said RIGHT. Never considered the left.

Different AC here. Basic non-ergo Keytronic layout. I use left hand, not right hand, and I was taught touch typing (and can still do 100wpm) by a teacher who taught by the book that says "right-handed."

Even though the "6" is, properly speaking, in the "6/y/h/n" vertical row that "belongs" to the right hand, I just looked closely at my fingers on the actual physical keyboard on which I've typed for 10+ years, and its clones on which I've typed for at least 20+, it's because the "6" is closer to the left index finger than the right index finger. The pad of my hand (not the wrist, about halfway up the pad beneath my pinky finger) rests on the lower edge of my keyboard, and my thumbs rest so comfortably on the spacebar that the spacebar has a little worn spot on it.

Home exercise: Place fingers on home row. Touch right and left index fingers to "T", "Y", and "R". For my fingers and keyboard, "Y" is the most comfortable, almost dead-center. Repeat experiment with "5/6/7". For my fingers/keyboard, I can't reach "5" with right. I can't reach "7" with left, and "6" is reachable with either, but more easily reached with left finger. with left on "T" and right on "y" almost centered beneath "6", left is visually confirmed closer to "6."

(Side note: Both by size of wear spot and by observation while typing this post, I almost exclusively press the space bar with my *right* thumb. Maybe that contributes to using my left idex to hit th 6 key -- my left thumb is basically unused. I just typed this entire sentence with my left thumb crammed under the keyboard and it felt comfortable. Undoable with right thumb in equivalent positon.)

P.S; Our touch-typing teachers taught us the same way, but for me and my keyboard, we cheat on the "6". I've forgotten whether it's supposed to matter which thumb you use on the space bar, although I imagine I could have squeezed out a couple of extra wpm if I'd used both thumbs in high school.

P.P.S.: Fuck the last 5 years of UX "professionals" who think everything has to change every six months for the hell of it, or the last 15 years who think that menu options should change depending on which options the software decides are more frequently used. Neither group knows anything of muscle memory because neither group has been in the industry long enough for it to matter.

Comment Re:No, not economics at all (Score 1) 185

I don't have to apologize for national fiat currency, it's silly too, and I don't keep my assets in cash. My problem with Bitcoin is that it is even less credible than "the faith and credit of the United States government", which has been the justification of the Dollar since it was allowed to float. It seems to be nothing but "wish and it will come true".

Comment Re:Are they going to fine airlines for doing the s (Score 1) 188

No, the small-aircraft owners aren't at risk of messing up their avionics. They are, however, consciously messing up the cellular network for everyone else. You see, you are supposed to be in range of just a few cells when you use your phone, so that we get frequency reuse between cells. If you are at altitude, you are in line-of-sight communications with all of the cells out to the visible horizon on all sides. And the frequencies you are using are probably locked out from reuse over that entire vast area. It would not take very many phones at altitude to disrupt the entire system.

Comment No, not economics at all (Score 4, Insightful) 185

People who received a play-money system from a mysterious unknown person and actually convinced themselves that it has value are now facing a schism over the money market failing to grow without bounds. Unless, that is, the software is modified in a way that might, over time, disincent people from playing the game.

I can't be the only one who is thinking that the only problem is that these folks believe bitcoins have value.

Hell, I thought that the fiat currency of nations was a bad deal. This is an order of magnitude worse.

Comment Re:Are they going to fine airlines for doing the s (Score 1) 188

No, the real problem is that you have line-of-sight communications to every cell site until the visible horizon. This tends to use up frequencies over a very large area. In general the antennas have been engineered not to work at high angles, but this can't be complete and the ones on the horizon may see you at the same angle as their regular users.

Comment The problem is usually video (Score 1, Insightful) 378

Think of how we use video devices. Not just in Linux, in pretty much all current systems. In the name of "efficiency" we memory-map them, and we let the user process directly mess around with the internals of a hardware device.

This is the way a set-top video game box works, not a secure and reliable operating system.

Until the video is firewalled off from the user the way other components of the operating system are, it's not going to be safe, secure, or reliable. Obviously we'll need new hardware designs to make this work fast enough.

Comment Re:People isn't the issue, farming is (Score 2) 390

What you are complaining about here is a failure of management.

But not the one I see signs about whenever I drive on I-5. The latest rash of billboards is "Why are we spending on high-speed rail when that money should be used to build additional water storage right now!".

Farmers, build your own water storage if you want it, I'm finished subsidizing your every expense and I'm taking the train.

It is impossible to travel faster than light, and certainly not desirable, as one's hat keeps blowing off. -- Woody Allen

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