[FRIAM] Time travel article

[Marcus Daniels]

It seems to be a thought experiment on whether some process functions can exist while preserving freedom of action.  They even say they aren’t concerned with space-time geometry and conclude  “Further studies will be necessary to find genuine physical scenarios realising the acausal processes we have discovered.”   Somehow my world is not shaken.

From: Friam <friam-bounces at redfish.com> On Behalf Of cody dooderson
Sent: Saturday, September 26, 2020 1:52 PM
To: The Friday Morning Applied Complexity Coffee Group <friam at redfish.com>
Subject: [FRIAM] Time travel article

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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