The Riddle of Consciousness

QuestionWhy can’t we understand the basis of consciousness?

Richard Dawkins: Well, both what it is -- it clearly has something to do with brains, and it's something that emerges from brains. When brains get sufficiently big, presumably, as human brains have, consciousness seems to emerge. As to what it is, that's a philosophically very difficult question, which biologists are no more equipped to deal with than anybody else. 

QuestionIs there a certain brain capacity necessary for the development of consciousness?

Richard Dawkins: Oh, nobody knows, because we don't know which animals are conscious. We don't actually, technically, even know that any other human being is conscious. We just each of us know that we ourselves are conscious. We infer on pretty good grounds that other people are conscious, and it's the same sort of grounds that lead us to infer that probably chimpanzees are conscious and probably dogs are conscious. But when we come to something like earthworms and snails, it's anybody's guess.

Question: How can science have a unique insight into cognizance?

Richard Dawkins: Well, that's a very difficult question since we can't actually measure whether creatures are conscious. So I guess science has as much insight as any other subject, but I don't think I can answer that question directly. Maybe computer science has as much insight into it as any other science. 

Recorded on: October 21, 2009

 

 

 

Evolutionary biologists have learned the basis of a variety of human activities, yet when it comes to understanding human consciousness, the field is as helpless as any other.

“Acoustic tweezers” use sound waves to levitate bits of matter

The non-contact technique could someday be used to lift much heavier objects — maybe even humans.

Kondo and Okubo, Jpn. J. Appl. Phys., 2021.
Surprising Science
  • Since the 1980s, researchers have been using sound waves to move matter through a technique called acoustic trapping.
  • Acoustic trapping devices move bits of matter by emitting strategically designed sound waves, which interact in such a way that the matter becomes "trapped" in areas of particular velocity and pressure.
  • Acoustic and optical trapping devices are already used in various fields, including medicine, nanotechnology, and biological research.
Keep reading Show less

Cockatoos teach each other the secrets of dumpster diving

Australian parrots have worked out how to open trash bins, and the trick is spreading across Sydney.

Surprising Science
  • If sharing learned knowledge is a form of culture, Australian cockatoos are one cultured bunch of birds.
  • A cockatoo trick for opening trash bins to get at food has been spreading rapidly through Sydney's neighborhoods.
  • But not all cockatoos open the bins; some just stay close to those that do.
  • Keep reading Show less

    CT scans of shark intestines find Nikola Tesla’s one-way valve

    Evolution proves to be just about as ingenious as Nikola Tesla

    Credit: Gerald Schömbs / Unsplash
    Surprising Science
    • For the first time, scientists developed 3D scans of shark intestines to learn how they digest what they eat.
    • The scans reveal an intestinal structure that looks awfully familiar — it looks like a Tesla valve.
    • The structure may allow sharks to better survive long breaks between feasts.
    Keep reading Show less

    Godzilla and mushroom clouds: How the first postwar nuclear tests made it to the silver screen

    The few seconds of nuclear explosion opening shots in Godzilla alone required more than 6.5 times the entire budget of the monster movie they ended up in.

    Culture & Religion

    As I sat in a darkened cinema in 1998, mesmerised and unnerved by the opening nuclear bomb explosions that framed the beginning of Roland Emmerich's Godzilla, it felt like I was watching the most expensive special effect in history.

    Keep reading Show less
    Quantcast