this post was submitted on 23 Aug 2024
396 points (99.5% liked)

xkcd

8839 readers
7 users here now

A community for a webcomic of romance, sarcasm, math, and language.

founded 1 year ago
MODERATORS
 

alt text:

Many a hungry time traveler has Googled 'trilobites shellfish allergy' only to find their carrier had no coverage in the Ordovician.

https://explainxkcd.com/2976/

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 17 points 2 months ago (9 children)

[off topic]

One of my favorite time travel novels is 'The Big Time' by Fritz Leiber.

The two big ideas in the book. First, that there's a Law of Conservation of Reality. Go back in time and shoot Hitler. He dies. Then gets better, really fast. Twenty minutes after you shoot him, he's fine. Spend your whole life shooting him and the history books will just ignore it. It takes an army of time travelers working night and day to get any changes to stick.

Second idea. There are two armies, both trying to change the past/future. They have been at it since before the Big Bang and will go on until the Heat Death of the Universe. They recruit humans but no human has ever seen the big bosses, just low ranking stooges.

[–] [email protected] 3 points 2 months ago (1 children)

He dies.

That's an unusual take on it. That would definitely have been recorded somewhere as a miraculous recovery. Usually it's written that the time travelling assassin fails in such a way that no-one notices, and if they do have some kind of effect, generally ends up being the cause of the history they were taught rather than the changer of it.

[–] [email protected] 4 points 2 months ago

The author did a few stories based on the 'Change War.'

In one, a time traveler goes back and takes the bullets out of a gun, hoping to prevent a death. There's no gunshot, but the victim is hit by a meteor and dies anyway. The idea is that Time is immutable and almost impossible to change with only one set of hands.

load more comments (7 replies)