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Even though they share relatively few pixels, they are still identical under rotation, and we can see that, essay on rabbit proof fence. So Penny was the Mystery Dog. Between jobs they would return to the settlements. In Perthpeople booed and jeered until the screen was switched off. The authenticity of the film can be proven as it has been recorded in the local press as well as in the archives of the department of Native affairs.



One informal analysis suggests short first names are strongly correlated with higher salaries. They are bad in several ways, and modern glyphs are little better. For example, v and w, or m and n. People confuse them all the time, both in reading and in writing. Even though they share relatively few pixels, they are still identical under rotation, and we can see that.

We could confuse them if we were reading upside down, or at an angle, or just confuse them period. OK, so we now have a set of unique and dissimilar glyphs that are unambiguous about their orientation. Well, we might want them to be easy to write as well as read.

How do we define easy to write? We could have a complicated physiological model about what strokes can easily follow what movements and so on, but we will cop out and say: Rather than unwritable pixels in a grid, our primitives will be little geometric primitives. The fewer the primitives and the closer to integers or common fractions the positioning of said primitives, the simpler and the better. We throw all these rules in, add a random starting population or better yet a population modeled after the existing alphabet, and begin our genetic algorithm.

What 26 glyphs will we get? Dehaene describes some fascinating and convincing evidence for the first kind of innateness. In one of the most interesting chapters, he argues that the shapes we use to make written letters mirror the shapes that primates use to recognize objects. After all, I could use any arbitrary squiggle to encode the sound at the start of Tree instead of a T. But actually the shapes of written symbols are strikingly similar across many languages.

It turns out that T shapes are important to monkeys, too. When a monkey sees a T shape in the world, it is very likely to indicate the edge of an object - something the monkey can grab and maybe even eat. A particular area of its brain pays special attention to those important shapes. Human brains use the same area to process letters. Dehaene makes a compelling case that these brain areas have been recycled We did not invent most of our letter shapes, he writes. They lay dormant in our brains for millions of years, and were merely rediscovered when our species invented writing and the alphabet.

But who is to say that a butterfly could not dream of a man? You are not the butterfly to say so! Better to ask what manner of beast could dream of a man dreaming a butterfly, and a butterfly dreaming a man. This is a reasonable objection. But it is rarely proffered by people really familiar with IQ, who also rarely respond to it. I believe they have an intuitive understanding that IQ is a percentile ranking, not an absolute measurement.

IQ is ordinal, not cardinal. It is plausible that the 20 points separating and represents far more cognitive power and ability than that separating and , or and And if retarded kids are closer to Einstein that the smartest non-human animal, that indicates human intelligence is very narrow , and that there is a vast spectrum of stupidity stretching below us all the way down to viruses which only learn through evolution.

Current IQ tests are designed for, tested against, and normed on fine distinctions among humans. It is very hard to test animal intelligence because of differing incentives and sensory systems, but if one deals with those problems, there ought to be some general intelligence of prediction and problem solving; the approach I favor is AIXI-style IQ tests. A gap like 20 points looks very impressive from our narrow compressed human perspective, but it reflects very little absolute difference; to a sheep, other sheep are each distinctive.

In Big O computer terms, we might say that geniuses are a constant factor faster than their dimmer brethren, but not asymptotically faster. The practical impact of a few factors out of thousands may be minimal, and explain the findings without denying the existence of such differences.

It has the advantage of all digital data: An upload could well be immortal. But an upload is also very fragile. It needs storage at every instance of its existence, and it needs power for every second of thought. So reliable backups are literally life and death for uploads. But backups are a double-edged sword for uploads. But for an upload? If an enemy got a copy of its full backups, the upload has essentially been kidnapped.

The negative consequences of a leak are severe. So backups need to be both reliable and secure. These are conflicting desires, though. One basic principle of long-term storage is: But the more copies, the more risk one copy will be misused. Suppose one encrypts the copies? Suppose one uses a one-time pad , since one worries that an encrypted copy which is bullet-proof today may be copied and saved for centuries until the encryption has been broken, and is perfectly certain the backups are secure.

Now one has 2 problems: If the future upload is missing either one, nothing works. The first and most obvious level is physical security. Most systems are highly vulnerable to attackers who have physical access; desktop computers are trivially hacked, and DRM is universally a failure. Any backup ought to be as inaccessible as possible. How about hard drives in orbit? How about orbit not around the Earth, but around the Solar System?

Say, past the orbit of Pluto? That offers an enormous volume: But once it sends a message back to Earth, its location has been given away - the Doppler effect will yield its velocity and the message gives its location at a particular time. A restore would require more than 2 messages. The device could self-destruct after sending off its encrypted payload. But that is very wasteful.

We want the orbit to change unpredictably after each broadcast. If we imagine that at each moment the device chooses between firing a thruster to go left or right , then we could imagine the orbit as being a message encrypted with a one-time pad - a one-time pad, remember, being a string of random bits.

The message is the original orbit; the one-time pad is a string of random bits shared by Earth and the device. Given the original orbit, and knowing when and how many messages have been sent by the device, Earth can compute what the new orbit is and where the device will be in the future. The next step up is a symmetric cipher: A public-key system would be better: Now the device can randomly choose where to go and tell Earth its choice so Earth knows where to aim its receivers and transmitters next.

But can we do better? Many thoughts occurred to me towards the end, when the novelty of the Heian era began to wear off and I could be more critical. It is also remarkable how tired they all feel; in Genji, poetry has lost its magic and has simply become another stereotyped form of communication, as codified as a letter to the editor or small talk. The gender dynamics are remarkable. I forget whether Genji sexually molests her before the pro forma marriage.

This may be a matter of non-relativistic moral appraisal, but I get the impression that in matters of sexual fidelity, rape, and children, Heian-era morals were not much different from my own, which makes the general immunity all the more remarkable. This is the shining Genji? The double-standards are countless. The power dynamics are equally remarkable.

Essentially every speaking character is nobility, low or high, or Buddhist clergy and very likely nobility anyway. The characters spend next to no time on work like running the country, despite many main characters ranking high in the hierarchy and holding minister-level ranks; the Emperor in particular does nothing except party.

All the households spend money like mad, and just expect their land-holdings to send in the cash. It is a signal of their poverty that the Uji household ever even mentions how less money is coming from their lands than used to.

The medicinal practices are utterly horrifying. They seem to consist, one and all, of the following algorithm: One freethinker suggests that a sick woman eat more food. The ending is so abrupt, and so clearly unfinished; many chapters have been spent on the 3 daughters of the Uji householder, 2 are disposed of, and the last one has just been discovered in her nunnery by 1 of the 2 protagonists and the other protagonist suspects.

The arc is not over until the would-be nun has been confronted, yet the book ends. Given that Murasaki Shikibu was writing an episodic entertainment for her court friends, and the overall lack of plot, I agree with Seidensticker that the abrupt mid-sentence ending is due either to Shikibu dying or abandoning her tale - not to any sort of deliberate plan. Measuring multiple times in a sandglass How does one make a sand hourglass measure multiple times? One could mark the outside and measure fractions that way.

But the sand would inevitably start to mix, and then you just have a minute timer with grey sand. Perhaps some sort of plastic sheet separating them? But it would get messed up when it passes through the funnel. Then, perhaps the black sand could be magnetically charged positively, and the white sand negatively? But magnetism attracts unlike.



The Stolen Generations (also known as Stolen Children) were the children of Australian Aboriginal and Torres Strait Islander descent who were removed from their families by the Australian Federal and State government agencies and church missions, under acts of their respective parliaments. The removals of those referred to as "half-caste" children . The film Rabbit Proof Fence is reminiscent of a war story as the country has been invaded and taken over. The invaders are taking away the children and placing them in camps. Only three manage to escape on their epic journey home they must cross through enemy occupied territory, never knowing friend from foe.

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