[FRIAM] Time travel article

Steve Smith sasmyth at swcp.com
Sat Sep 26 22:19:54 EDT 2020


Cody -

I think maybe someone traveled back in time to change the attribution of
"the butterfly effect" from that first (recognized) statement by Lorenz
in the 70's and in the process (I think) valuable nuances of meaning.  
Lorenz is worth reading in his original...

technologyreview.com/2011/02/22/196987/when-the-butterfly-effect-took-flight/

Maybe it was Marty McButterFly in a DeLorean with a Flux Capacitor...  
Do you remember seeing the movie-prop DeLorean's in the parking lot at
the hotel in Boulder when we visited NREL?   Or was that in another
timeline with another Cody McFly?

I'd like to be of more use re: a novice explanation...   I *can* offer
you this near-seminal paper in reversible computation (and physics) from
1984ish.. which I have not read since!   I think the Los Alamos work
references it?

http://strangepaths.com/wp-content/uploads/2007/11/conservativelogic.pdf

- Steve

PS.  it is worth noting that William Gibson's recent (2016 ++) novels
known colloquially as his "Jackpot novels" touches very eloquently on
these concepts albeit in a quirky Gibsonian Way...

On 9/26/20 2:51 PM, cody dooderson wrote:
> An article came out recently about a proof that time travel would not
> lead to the butterfly effect.
> https://www.popularmechanics.com/science/math/amp34146674/paradox-free-time-travel-is-possible/
> . This sounds great but does anybody understand it enough to explain
> it to a novice? Has this idea been around for a while, because
> Netflix's show The Umbrella Academy touches on it?
> The article says that the proof is backed up by research from Los
> Alamos and some experience with random walkers. I am pretty familiar
> with the latter. My experience is that some random walkers, a
> recursive path search, and patience can solve a lot of basic computer
> science problems. 
>
>
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