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<p>Jochen -</p>
<p>I know a lot of people who would like to "bobble up" until Nov 4
or maybe Jan 21 or maybe after 2030... but Vinge's tale is very
much a cautionary one!</p>
<p>- Steve<br>
</p>
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cite="mid:202009270817.08R8HUas063809@ame1.swcp.com">
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<div dir="auto">Here is the link to the preprint</div>
<div dir="auto"><a class="moz-txt-link-freetext" href="https://arxiv.org/abs/2001.02511">https://arxiv.org/abs/2001.02511</a></div>
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<div dir="auto">Quantum theory is mentioned in the article only in
the introduction, although the place where Quantum Theory and
General Relativity meet is where it gets interesting :-/</div>
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</div>
<div dir="auto">Time travel is an interesting topic. Time travel
forward in time (as it is described for example in the novel
"Marooned in Realtime" by Vernor Vinge) is far more likely than
time travel back in time. </div>
<div dir="auto"><br>
</div>
<div dir="auto">-J.</div>
<div dir="auto"><br>
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<div>-------- Original message --------</div>
<div>From: cody dooderson <a class="moz-txt-link-rfc2396E" href="mailto:d00d3rs0n@gmail.com"><d00d3rs0n@gmail.com></a> </div>
<div>Date: 9/26/20 22:52 (GMT+01:00) </div>
<div>To: The Friday Morning Applied Complexity Coffee Group
<a class="moz-txt-link-rfc2396E" href="mailto:friam@redfish.com"><friam@redfish.com></a> </div>
<div>Subject: [FRIAM] Time travel article </div>
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<div dir="auto">An article came out recently about a proof that
time travel would not lead to the butterfly effect. <a
rel="noreferrer"
href="https://www.popularmechanics.com/science/math/amp34146674/paradox-free-time-travel-is-possible/"
moz-do-not-send="true">https://www.popularmechanics.com/science/math/amp34146674/paradox-free-time-travel-is-possible/</a>
. 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<span style="font-family:sans-serif"> Umbrella
Academy touches on it?</span>
<div dir="auto">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. </div>
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