Ask A Genius 395 – Brain Efficiencies

In-Sight Publishing

Ask A Genius 395 – Brain Efficiencies

September 27, 2018

[Beginning of recorded material]

Scott Douglas Jacobsen: How does the brain achieve its efficiencies?

Rick Rosner: One way is specialization. I am sure. It is important for humans to be able to recognize verticals and horizontals in their field of view. I am sure the neural circuitry associated with that is specialized to do that task, and does it much more efficiently than a bunch of generalized circuitry would do.

I would guess that there is specialization throughout the brain. Another thing the brain does is that is has evolved efficient pruning to turn general circuitry into efficient circuitry by sending connections out and then pruning the ones that aren’t helpful.

There’s a third efficiency, which is efficiency generalizing – having the most efficient general neural net circuitry with even some specialization mixed in with the generalization.

All of this is extremely powerful because it is the product of hundreds of millions of years of brain development. Leading up to humans and then a couple million years of brain development in hominids and homo sapiens as well; however, it is also somewhat sloppy because it is based on evolutionary processes, which is not optimized to weed out all sloppy and inefficient structures.

[End of recorded material]


Rick Rosner

American Television Writer


Rick Rosner

Scott Douglas Jacobsen

Editor-in-Chief, In-Sight Publishing


In-Sight Publishing


[1] Four format points for the session article:

  1. Bold text following “Scott Douglas Jacobsen:” or “Jacobsen:” is Scott Douglas Jacobsen & non-bold text following “Rick Rosner:” or “Rosner:” is Rick Rosner.
  2. Session article conducted, transcribed, edited, formatted, and published by Scott.
  3. Footnotes & in-text citations in the interview & references after the interview.
  4. This session article has been edited for clarity and readability.

For further information on the formatting guidelines incorporated into this document, please see the following documents:

  1. American Psychological Association. (2010). Citation Guide: APA. Retrieved from
  2. Humble, A. (n.d.). Guide to Transcribing. Retrieved from

License and Copyright

In-Sight Publishing and In-Sight: Independent Interview-Based Journal by Scott Douglas Jacobsen is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Based on a work at and


© Scott Douglas Jacobsen, Rick Rosner, and In-Sight Publishing and In-Sight: Independent Interview-Based Journal 2012-2018. Unauthorized use and/or duplication of this material without express and written permission from this site’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Scott Douglas Jacobsen, Rick Rosner, and In-Sight Publishing and In-Sight: Independent Interview-Based Journal with appropriate and specific direction to the original content.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s