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Computation Quotes

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Computation Quotes

“Theory is relevant to you because it shows you a new, simpler, and more elegant side of computers, which we normally consider to be complicated machines. The best computer designs and applications are conceived with elegance in mind. A theoretical course can heighten your aesthetic sense and help you build more beautiful systems.”

“The reason [James Clerk] Maxwell's Demon cannot exist is that it does take resources to perform an act of discrimination. We imagine computation is free, but it never is. The very act of choosing which particle is cold or hot itself becomes an energy drain and a source of waste heat. The principle is also known as "no free lunch." We do our best to implement Maxwell's Demon whenever we manipulate reality with our technologies, but we can never do so perfectly; we certainly can't get ahead of the game, which is known as entropy. All the air conditioners in a city emit heat that makes the city hotter overall. While you can implement what seems to be a Maxwell's Demon if you don't look too far or too closely, in the big picture you always lose more than you gain. Every bit in a computer is a wannabe Maxwell's Demon, separating the state of "one" from the state of "zero" for a while, at a cost. A computer on a network can also act like a wannabe demon if it tries to sort data from networked people into one or the other side of some imaginary door, while pretending there is no cost or risk involved.”

“If you understand McCarthy's eval, you understand more than just a stage in the history of languages. These ideas are still the semantic core of Lisp today. So studying McCarthy's original paper shows us, in a sense, what Lisp really is. It's not something that McCarthy designed so much as something he discovered. It's not intrinsically a language for AI or for rapid prototyping, or any other task at that level. It's what you get (or one thing you get) when you try to axiomatize computation.”

“ALGEBRA is a general Method of Computation by certain Signs and Symbols which have been contrived for this Purpose, and found convenient.”

“Ladies are always of great use to the party they espouse, and never fail to win over numbers to it. Lovers, according to Sir William Petty's computation, make at least the third part of sensible men of the British nation; and it has been an uncontroverted maxim in all ages, that though a husband is sometimes a stubborn sort of a creature, a lover is always at the devotion of his mistress. By this means, it lies in the power of every fine woman, to secure at least half a dozen able-bodied men to his Majesty's service.”

“The Saviour said He was going to prepare us a place. How wonderful it will be is beyond human computation. Remember that in six days Christ made the heavens and earth and all that in them is.... If He made so many wonders in six days, then what beauties and marvels He has surely prepared during these 1900 years in which He has been preparing our mansions in the Father's House!”

“We couldn't build quantum computers unless the universe were quantum and computing. We can build such machines because the universe is storing and processing information in the quantum realm. When we build quantum computers, we're hijacking that underlying computation in order to make it do things we want: little and/or/not calculations. We're hacking into the universe.”

“Upon the present theological computation, ten souls must be lost for one that is saved. At which rate of reckoning, heaven can raise but its cohorts while hell commands its legions. From which sad account it would appear, that, though our Saviour had conquered death by the resurrection, he had not yet been able to overcome sin by the redemption.”

“We must pay close attention to the signals our body sends - the aches and pains, digestions and indigestions, increased energies and exhaustions. Our body sends us signals about the correct 'spelling' of our lives. These sensations are the sum of complex inner computations that we must learn to interpret.”

“Human beings are distinguished by a capacity for experience as well as by their behavior, and homosexuality is as much a matter ofemotion as of genital manipulation.... As we each examine our own sense of identity we realize how much more complex is the question of homosexuality than a mere Kinsey-like computation of orgasms.”

“I suppose that Paderewski can play superbly, if not quite at his best, while his thoughts wander to the other end of the world, orpossibly busy themselves with a computation of the receipts as he gazes out across the auditorium. I know a great actor, a master technician, can let his thoughts play truant from the scene.”

“Computers are good at swift, accurate computation and at storing great masses of information. The brain, on the other hand, is notas efficient a number cruncher and its memory is often highly fallible; a basic inexactness is built into its design. The brain's strong point is its flexibility. It is unsurpassed at making shrewd guesses and at grasping the total meaning of information presented to it.”

“I've been asked to explain why I don't worry much about the topics of privacy threat...One reason is that these scenarios seem to assume that there will be large, monolithic bureaucracies...that are capable of harnessing computers for one-way surveillance of an unsuspecting populace. I've come to feel that computation just doesn't work that way. Being afraid of monolithic organizations especially when they have computers, is like being afraid of really big gorillas especially when they are on fire.”

“In almost every computation a great variety of arrangements for the succession of the processes is possible, and various considerations must influence the selections amongst them for the purposes of a calculating engine. One essential object is to choose that arrangement which shall tend to reduce to a minimum the time necessary for completing the calculation.”

“I have no great faith in political arithmetic, and I mean not to warrant the exactness of either of these computations.”

“The moral, then, is that familiar categories of behavior - marriage customs, food taboos, folk superstitions, and so on - certainly do vary across cultures and have to be learned, but the deeper mechanisms of mental computation that generate them may be universal and innate.”

“[Regarding] the soul, I'm a little wary of any discourse on that topic that pretends to have an answer, so I tend to keep my musings to myself. There is interesting, legitimate metaphysical work on the topic going at least as far back as Leibniz and continuing today, following the theme that consciousness, or at least computation, might be at least as fundamental as phenomena such as space, time, energy, and matter, which are the usual subject matter of physics. I follow that sort of thing with interest but with very modest expectations that answers will be arrived at during my lifetime.”

“People know, or dimly feel, that if thinking is not kept pure and keen, and if respect for the world of mind is no longer operative, ships and automobiles will soon cease to run right, the engineer's slide rule and the computations of banks and stock exchanges will forfeit validity and authority, and chaos will ensue.”

“Probability is not a mere computation of odds on the dice or more complicated variants; it is the acceptance of the lack of certainty in our knowledge and the development of methods for dealing with our ignorance.”

“When the aggregate amount of solid matter transported by rivers in a given number of centuries from a large continent, shall be reduced to arithmetical computation, the result will appear most astonishing to those...not in the habit of reflecting how many of the mightiest of operations in nature are effected insensibly, without noise or disorder.”

“Mathematics is much more than computation with pencil and a paper and getting answers to routine exercises. In fact, it can easily be argued that computation, such as doing long division, is not mathematics at all. Calculators can do the same thing and calculators can only calculate they cannot do mathematics.”

“As a peace machine, it's value to the world will be beyond computation. Would a declaration of war between Russia and Japan be made, if within an hour there after a swifty gliding aeroplane might take its flight from St Petersburg and drop half a ton of dynamite above the enemy's war offices? Could any nation afford to war upon any other with such hazards in view?”

“The underlying physical laws necessary for the mathematical theory of a large part of physics and the whole of chemistry are thus completely known, and the difficulty is only that the exact application of these laws leads to equations much too complicated to be soluble. It therefore becomes desirable that approximate practical methods of applying quantum mechanics should be developed, which can lead to an explanation of the main features of complex atomic systems without too much computation.”