Monday, August 29, 2022

A Thousand Brains - book overview

 Picked this 2011 book up from the library and read it across the weekend. Written by Jeff Hawkins who founded the company that developed the Palm pilot and Treo. The book has had mixed reviews - see Forbes, Bill Gates, a range of reviews via Goodreads. Two long youtube videos on the topic as well - here and here

The book introduces and rationalises another way to understand how the brain works. The foreword written by Richard Dawkins provides background into the origins and substantiality of the book’s overall arguments (this foreword is worth working through). The author has a background in technology entrepreneurship. He set up the company which introduced ‘smart phones’ in the form of palm pilots and Treos. Using the resources gathered from his entrepreneurism, he has sat up a research lab, think tank and network to study how the brain works.

The premise is that all the cells in the brain work in the same way. The neo-cortext contains millions of cells, each dedicated to ‘storing’ and connecting information. The book proposes a different viewpoint on how these cells go about organising and interpreting information. Information is gathered in ‘cortical columns’ and the brain goes through a sequence of sieving through these when information needs to be drawn on. This sieving is proposed to be completed through a consensus like framework, providing some inkling as to why it is difficult for beliefs and concepts, once well embedded into individuals’ mindsets, to be changed. The brain uses frames of reference and relies on these to come to conclusions.

The second half of the book looks into artificial intelligence and the challenges of ‘replicating’ human thinking with technology. Currently, AI can only accomplish specific tasks. If an AI is ‘trained’ to play chess, it cannot drive a car and vice versa. Therefore, the versatility and agility of the human brain, is still not able to be replaced by AI. Brains are intimately connected to individual experiences etc. and having a brain without its organic sensory partner, is therefore difficult. We are still a long way off from AI replacing humans.

The book is short (200 plus pages) with a short list of suggested readings to follow up.

1 comment:

hashmicro said...

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