A Mind of Its Own

What Hacker News says

1. rramadassOct 2025
   Most folks don't understand what Physicists mean when they say "Reality doesn't exist at the Quantum level". Words like "Reality", "Illusion" etc. mean quite different things when applied at quantum level vs. classical-macro level.

   The best book to get a grasp on the above is Werner Heisenberg's classic Physics and Philosophy: The Revolution in Modern Science. The introduction by Paul Davies itself is worth the price of the book since it highlights the main issues quite clearly.

   At the fundamental level quantum systems have an inherent indeterminism (as a consequence of the famous uncertainty principle) which is what we find hard to grasp. It does not mean total anarchy but that you can only calculate relative probabilities of the alternatives in the answer set i.e. it is a statistical theory. Thus it can make definite predictions about sets of identical systems but generally cannot say anything definite about a specific individual system.

   For example, an electron doesn't exist as a single thing occupying a specific trajectory around the nucleus. It only exists as a set of potentialities occupying an area of space viz. the so called electron shell. Only when a measurement is made does a electron-with-position or electron-with-momentum can be said to come into existence (since before the measurement there are only probabilities and you cannot measure both position and momentum sharply simultaneously). It is in this sense that the Reality of an electron is said to only exist in the Measurement/Observation and cannot be said to exist otherwise.

   The other side of the coin is that, Modern Neuroscience tells us that the Brain itself is wired to Construct Reality from incomplete data and we seek/construct patterns where there are none. See for example Cordelia Fine's A Mind of Its Own: How Your Brain Distorts and Deceives and watch this Ted talk by Susana Martinez-Conde Reality is made of illusions—and we need them - https://www.youtube.com/watch?v=FzDw07RqCSs

   Show morethread
2. rramadassSep 2024
   Related : A Mind Of Its Own : How Your Brain Distorts and Deceives by Cordelia Fine.
   thread
3. mikeMay 2012
   Just a quick recommendation for "A Mind Of Its Own" by Cordelia Fine (especially Chapter 3 = The Immoral Brain) for anyone who would like to read more about this, or for anyone already familiar who would like a short, readable book on the subject to recommend to other people.
   thread
4. msluyterAug 2012
   Cordelia Fine, in "A Mind of Its Own," makes a similar point:

   Fine says, "that your unconscious is smarter than you, faster than you, and more powerful than you. It may even control you. You will never know all of its secrets." So what to do? Begin with self-awareness, Fine says, then manage the distortions as best one can. We owe it to ourselves "to lessen the harmful effects of the brain’s various shams," she adds, while admitting that applying this lesson to others is easier than to oneself. Ironically, one category of persons shows that it is possible to view life through a clearer lens. "Their self-perceptions are more balanced, they assign responsibility for success and failure more even-handedly, and their predictions for the future are more realistic. These people are living testimony to the dangers of self-knowledge," Fine asserts. "They are the clinically depressed."

   Show morethread