“2.6.: still a stable kernel, but accept bigger changes leading up to it (timeframe: a month or two).2.. x: aim for big changes that may destabilize the kernel for several releases (timeframe: a year or two). x. x: Linus went crazy, broke absolutely everything, and rewrote the kernel to be a microkernel using a special message-passing version of Visual Basic. (timeframe: "we expect that he will be released from the mental institution in a decade or two").”

— Linus Torvalds

Message to Linux kernel mailing list, 2005-03-02, Torvalds, Linus, 2006-12-11 http://lkml.org/lkml/2005/3/2/247, <br class="br">2000s, 2005

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Linus Torvalds150

Finnish-American software engineer and hacker 1969

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“Suppose we a certain Number of things exposed, different each from other, as a, b, c, d, e, &c.; The question is, how many ways the order of these may be varied? as, for instance, how many changes may be Rung upon a certain Number of Bells; or, how many ways (by way of Anagram) a certain Number of (different) Letters may be differently ordered?
Alt.1,21) If the thing exposed be but One, as a, it is certain, that the order can be but one. That is 1.
2) If Two be exposed, as a, b, it is also manifest, that they may be taken in a double order, as ab, ba, and no more. That is 1 x 2 = 2. Alt.3
3) If Three be exposed; as a, b, c: Then, beginning with a, the other two b, c, may (by art. 2,) be disposed according to Two different orders, as bc, cb; whence arise Two Changes (or varieties of order) beginning with a as abc, acb: And, in like manner it may be shewed, that there be as many beginning with b; because the other two, a, c, may be so varied, as bac, bca. And again as many beginning with c as cab, cba. And therefore, in all, Three times Two. That is 1 x 2, x 3 = 6.
Alt.34) If Four be exposed as a, b, c, d; Then, beginning with a, the other Three may (by art. preceeding) be disposed six several ways. And (by the same reason) as many beginning with b, and as many beginning with c, and as many beginning with d. And therefore, in all, Four times six, or 24. That is, the Number answering to the case next foregoing, so many times taken as is the Number of things here exposed. That is 1 x 2 x 3, x 4 = 6 x 4 = 24.
5) And in like manner it may be shewed, that this Number 24 Multiplied by 5, that is 120 = 24 x 5 = 1 x 2 x 3 x 4 x 5, is the number of alternations (or changes of order) of Five things exposed. (Or, the Number of Changes on Five Bells.) For each of these five being put in the first place, the other four will (by art. preceeding) admit of 24 varieties, that is, in all, five times 24. And in like manner, this Number 120 Multiplied by 6, shews the Number of Alternations of 6 things exposed; and so onward, by continual Multiplication by the conse quent Numbers 7, 8, 9, &c.;
6) That is, how many so ever of Numbers, in their natural Consecution, beginning from 1, being continually Multiplied, give us the Number of Alternations (or Change of order) of which so many things are capable as is the last of the Numbers so Multiplied. As for instance, the Number of Changes in Ringing Five Bells, is 1 x 2 x 3 x 4 x 5 = 120. In Six Bells, 1 x 2 x 3 x 4 x 5 x 6 = 120 x 6 = 720. In Seven Bells, 720 x 7 = 5040. In Eight Bells, 5040 x 8 = 40320, And so onward, as far as we please.”

John Wallis (1616–1703) English mathematician

Source: A Discourse of Combinations, Alterations, and Aliquot Parts (1685), Ch.II Of Alternations, or the different Change of Order, in any Number of Things proposed.

“First we had two earthquakes - fine, this week God not only hates republicans, but apparently us kernel developers too. But we kernel developers laugh in the face of danger, and a 5.5 earthquake just makes us whimper and hide in the closet for a while.”

Linus Torvalds (1969) Finnish-American software engineer and hacker

2010s, 2012

“Between things sacred and profane there is this difference among others. In profane matters the instrument derives its worth from the end, and is valued for the most part only in so far as it is a means to that end; and consequently we change the instruments as the end demands, and finally, when the end is no longer pursued, the instruments automatically fall into disuse. But in sacred matters the end invests the instrument with a sanctity of its own. Consequently, there is no changing or varying of the instrument; and when the end has ceased to be pursued, the instrument does not fall out of use, but is directed towards another end. In other words: in the one case we preserve the shell for the sake of the kernel, and discard the shell when we have eaten the kernel; in the other case we raise the shell to the dignity of the kernel, and do not rob it of that dignity even if the kernel withers, but make a new kernel for it.”

Ahad Ha'am (1856–1927) Hebrew essayist and thinker

Source: Selected Essays (1904), "Sacred and Profane" (1891), p. 41

“Consider an event, for example the outburst if a nova… Suppose this event is observed from two stars in line with the nova, and suppose further that the two stars are moving uniformly with respect to each other in this line. Let the epoch at which these stars passed by each other be taken as the zero of time measurement, and let an observer A on one of the stars estimate the distance and epoch of the nova outburst to be x units of length and t units of time, respectively. Suppose the other star is moving toward the nova with velocity v relative to A. Let an observer B on the star estimate the distance and epoch of the nova outburst to be x' units of length and t' units of time, respectively. Then the Lorentz formulae, relating x' to t', arex' = \frac {x-vt}{\sqrt{1-\frac{v^2}{c^2}}}; \qquad t' = \frac {t-\frac{vx}{c^2}}{\sqrt{1-\frac{v^2}{c^2}}}
These formulae are… quite general, applying to any event in line with two uniformly moving observers. If we let c become infinite then the ratio of v to c tends to zero and the formulae becomex' = x - vt; \qquad t' = t.”

Gerald James Whitrow (1912–2000) British mathematician

p, 125
The Structure of the Universe: An Introduction to Cosmology (1949)

“Take a unit, halve it, halve the result, and so on continually. This gives—1 1⁄2 1⁄4 1⁄8 1⁄16 1⁄32 1⁄64 1⁄128 &c.;Add these together, beginning from the first, namely, add the first two, the first three, the first four, &c;… We see then a continual approach to 2, which is not reached, nor ever will be, for the deficit from 2 is always equal to the last term added.
…We say that—1, 1 + 1⁄2, 1 + 1⁄2 + 1⁄4, 1 + 1⁄2 + 1⁄4 + 1⁄8, &c.; &c.;is a series of quantities which continually approximate to the limit 2. Now the truth is, these several quantities are fixed, and do not approximate to 2. …it is we ourselves who approximate to 2, by passing from one to another. Similarly when we say, "let x be a quantity which continually approximates to the limit 2," we mean, let us assign different values to x, each nearer to 2 than the preceding, and following such a law that we shall, by continuing our steps sufficiently far, actually find a value for x which shall be as near to 2 as we please.”

Augustus De Morgan (1806–1871) British mathematician, philosopher and university teacher (1806-1871)

The Differential and Integral Calculus (1836)

“The fact that the general incidence of leukemia has doubled in the last two decades may be due, partly, to the increasing use of x-rays for numerous purposes. The incidence of leukemia in doctors, who are likely to be so exposed, is twice that of the general public. In radiologists … the incidence is ten times greater.”

Isaac Asimov (1920–1992) American writer and professor of biochemistry at Boston University, known for his works of science fiction …

Statement of 1965, as quoted without citation of a specific work in Isaac Asimov’s Book of Science and Nature Quotations (1988), edited by Asimov and Jason A. Shulman, p. 233 https://archive.org/details/BookOfScienceAndNatureQuotations-IsaacAsimov <br class="br">General sources

“It's a bird … it's a plane … no, it's KernelMan, faster than a speeding bullet, to your rescue. Doing new kernel versions in under 5 seconds flat …”

Linus Torvalds (1969) Finnish-American software engineer and hacker

Announcement for Linux 1.3.27, 1995-11-14, Torvalds, Linus, 2017-04-25 http://lkml.iu.edu/hypermail/linux/alpha/9509.1/0006.html, <br class="br">1990s, 1995-99

“SPAN ID=The_process_by>The process by means of which human beings can arbitrarily make certan things stand for other things may be called the symbolic process. Whenever two or more human beings can communicate with each other, they can, by agreement, make anything stand for anything. For example, here are two symbols:
X Y
We can agree to let X stand for buttons and Y for bows; then we can freely change our agreement and let X stand for […] North Korea, and Y for South Korea. We are, as human beings, uniquely free to manufacture and manipulate and assign values to our symbols as we please. Indeed, we can go further by making symbols that stand for symbols. […] This freedom to create symbols of any assigned value and to create symbols that stand for symbols is essential to what we call the symbolic process.

S. I. Hayakawa book Language in Thought and Action

Source: Language in Thought and Action (1949), The Symbolic Process, p. 24

“Scientists estimate the universe unfolded from its state of infinite destiny* - a moment commonly referred to as "the big bang" - approximately 1.3-2 x 10^10 years ago.

*Typo: "destiny" should read "density.”

Mark Z. Danielewski book House of Leaves

Source: House of Leaves

“I would almost consider myself a canonical child of Generation X… because I think there is an ethic and aesthetic that goes along with that generation, it may have something to do with the fact that "Never Mind the Bollocks" was released when we were 16-years-old and that was really the album that crystalized a generation.”

Mark Pesce (1962) American writer

An Afternoon with Mark Pesce: The Uncut Version http://hyperreal.org/~mpesce/interview.html

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