Comments on: Time Travel & the Bootstrap Paradox Explained

By: Walter Huffman

Walter Huffman — Mon, 26 Oct 2026 06:40:25 +0000

Tom Baker is my favorite Dr. Who.

By: Callum McIntosh

Callum McIntosh — Thu, 24 Sep 2026 07:22:02 +0000

as tom baker once said you might be a doctor but your not thee doctor because im the doctor the orginal you might say

By: Meg

Meg — Fri, 07 Aug 2026 09:05:41 +0000

I’m here, so mind-blowing as I’ve watched Dark

By: Nuohiu

Nuohiu — Fri, 18 Jul 2025 17:26:57 +0000

I’m watching doctor who Right now I just looked it up

By: ReddyBro

ReddyBro — Sun, 28 Oct 2018 22:07:00 +0000

Like that you used the clocks from the Steins;Gate OP as the thumbnail lmao

By: Enaidealukal

Enaidealukal — Wed, 10 Oct 2018 15:56:00 +0000

Another good recent example of the Bootstrap Paradox is in Interstellar: the main character (Mathew McConaughey) goes to NASA’s secret headquarters, embarks on a mission through a wormhole to another galaxy, where he eventually ends up in a tesseract inside a black hole, where he is able to send his past-self the coordinates to NASA’s secret headquarters (which was the impetus for this whole journey in the first place). So he only gets to the tesseract in the black hole (in the future) because he had obtained the coordinates to NASA (in the past), and he only obtains the coordinates to NASA (in the past) because he gets to the tesseract in the black hole (in the future). In other words, he only arrives at his destination B because of earlier event A, but earlier event A is caused by later event B.

This situations avoids any outright inconsistency, as in the Grandfather paradox, and so is broadly logically possible- I wonder how the analysis differs under an A-series theory of time vs. a B-series theory of time? I’m not well-versed enough in the metaphysics of time, but it seems possible that some of the physical/causal objections could be mitigated under the B-series?

By: A.Z.M.B

A.Z.M.B — Tue, 04 Sep 2018 13:57:00 +0000

So if you sent information (on paper-paper 3) about how to change the past for the good (probably creating parallel universes rather than creating a stable time loop) but with the instruction to first copy (paper2) out the information (not photocopy it) and then before you (or your descendants) traveled back to the past/1st timeline, copy out the copy (paper 3) and then take it to your past self/parents in the 1st timeline (thus travelling from the finished/good timeline) to the one your parents left

By: Le Pixel Taco

Le Pixel Taco — Sun, 03 Jun 2018 18:10:00 +0000

In reply to Cross. But the point the @E-isme is trying to make is that, this creates an entirely new timeline where Einstein was presented with these ideas instead of coming up with them. He is still the original creator, it's just in a different timeline now.

By: Hit

Hit — Thu, 22 Feb 2018 05:49:00 +0000

I am here because Rei Ark told me to google it. From a family guy video.

By: hypobusa

hypobusa — Sat, 20 Jan 2018 15:14:00 +0000

Watching Dr Who, too!