“The easy problems of consciousness are those that seem directly susceptible to the standard methods of cognitive science, whereby a phenomenon is explained in terms of computational or neural mechanisms. The hard problems are those that seem to resist those methods…. The really hard problem of consciousness is the problem of experience. When we think and perceive, there is a whir of information-processing, but there is also a subjective aspect…. When we see, for example, we experience visual sensations: the felt quality of redness, the experience of dark and light, the quality of depth in a visual field. Other experiences go along with perception in different modalities: the sound of a clarinet, the smell of mothballs. Then there are bodily sensations, from pains to orgasms; mental images that are conjured up internally; the felt quality of emotion, and the experience of a stream of conscious thought.”

— David Chalmers

"Facing Up to the Problem of Consciousness," 1995

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Australian philosopher and cognitive scientist 1966

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“The easy problems of consciousness are those that seem directly susceptible to the standard methods of cognitive science, whereby a phenomenon is explained in terms of computational or neural mechanisms. The hard problems are those that seem to resist those methods. …The really hard problem of consciousness is the problem of experience.”

David Chalmers (1966) Australian philosopher and cognitive scientist

When we think and perceive, there is a whir of information-processing, but there is also a subjective aspect. ...When we see, for example, we experience visual sensations: the felt quality of redness, the experience of dark and light, the quality of depth in a visual field. Other experiences go along with perception in different modalities: the sound of a clarinet, the smell of mothballs. Then there are bodily sensations, from pains to orgasms; mental images that are conjured up internally; the felt quality of emotion, and the experience of a stream of conscious thought.
"Facing Up to the Problem of Consciousness," 1995

“Philosophy accepts the hard and hazardous task of dealing with problems not yet open to the methods of science - problems like good and evil, beauty and ugliness, order and freedom, life and death; so soon as a field of inquiry yields knowledge susceptible of exact formulation it is called science.”

Will Durant book The Story of Philosophy

The Story of Philosophy (1926)

“When we had no computers, we had no programming problem either. When we had a few computers, we had a mild programming problem. Confronted with machines a million times as powerful, we are faced with a gigantic programming problem.”

Edsger W. Dijkstra (1930–2002) Dutch computer scientist

Dijkstra (1986) Visuals for BP's Venture Research Conference http://www.cs.utexas.edu/users/EWD/transcriptions/EWD09xx/EWD963.html (EWD 963).
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“What we really mean by free will… is the visualizing of alternatives and making a choice between them. …the central problem of human consciousness depends on this ability to imagine.”

Jacob Bronowski (1908–1974) Polish-born British mathematician

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“I liked quantum mechanics very much. The subject was hard to understand but easy to apply to a large number of interesting problems.”

Willis Lamb (1913–2008) American Physicist

W. E. Lamb, Super classical quantum mechanics: the best interpretation of non relativistic quantum mechanics, Am. J. Phys. 69, 413-422 (2001).

“It [thought] is a mechanical thing and can solve only mechanical problems. But you want to use it to understand something living; that is the problem. It is not intended for that. Human problems are something living. You cannot use thinking to solve those problems.”

U.G. Krishnamurti (1918–2007) Indian philosopher

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“Coming directly to the topic of projective methods of personality study, we may say that the dynamic conception of personality as a process of organizing experience and structuralizing life space in a field leads to the problem of how we can reveal the way an individual personality organizes experience, in order to disclose or at least gain insight into that individual's private world of meanings, significances, patterns, and feelings.”

Lawrence K. Frank (1890–1968) American cyberneticist

Source: Projective methods for the study of personality (1939), p. 402 as cited in: Jerry S. Wiggins (2003) Paradigms of personality assessment. p. 33

“What excited me was the recognition that this was simply another version of the problem that had obsessed me all of my life -- the problem of those moments when life seems entirely delightful, when we experience a sensation of what G. K. Chesterton called "absurd good news." Life normally strikes most of us as hard, dull and unsatisfying; but in these moments, consciousness seems to glow and expand, and all the contradictions seem to be resolved. Which of the two visions is true? My own reflections had led me to conclude that the vision of "absurd good news" is somehow broader and more comprehensive than the feeling that life is dull, boring and meaningless. Boredom is basically a feeling of narrowness, and surely a narrow vision is bound to be less true than a broad one?”

Colin Wilson book The Misfits: A Study of Sexual Outsiders

Source: The Misfits: A Study of Sexual Outsiders (1988), p. 16

“There are two general Methods made use of in the Mathematicks, viz. Synthesis and Analysis, which we shall explain, after having acquainted the Reader, that the Method we make use of to resolve a Mathematical Problem, is called Zetetick; and that that Method which determines when, and by what way, and how many different ways a Problem may be resolved, is called Poristick. But in treating of Methods, we will first premise, that in general, a Method is the Art of disposing a Train of Arguments or Consequences in a right Order, either to discover the Truth of a Theorem, which we would find out, or to demonstrate it to others, when found.”

Jacques Ozanam (1640–1718) French mathematician

Source: A Mathematical Dictionary: Or; A Compendious Explication of All Mathematical Terms, 1702, p. 26

“But in reality, there is no reason to assume that artificial intelligence will gain consciousness, because intelligence and consciousness are very different things. Intelligence is the ability to solve problems. Consciousness is the ability to feel things such as pain, joy, love and anger. We tend to confuse the two because in humans and other mammals intelligence goes hand in hand with consciousness. Mammals solve most problems by feeling things. Computers, however, solve problems in a very different way.”

Yuval Noah Harari book 21 Lessons for the 21st Century

21 Lessons for the 21st Century

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