# ­xkcd thread

**URL:** <https://boards.straightdope.com/t/xkcd-thread/854574>\
**Category:** Cafe Society\
**Tags:** comic-strips\
**Created:** [May 28, 2020, 12:57am UTC](https://boards.straightdope.com/t/xkcd-thread/854574 "2020-05-28T00:57:03Z")\
**Posts on this page:** 1\
**Showing post:** 4233

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**Author:** ![Pleonast](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pleonast/32/1183_2.png) [@Pleonast](https://boards.straightdope.com/u/Pleonast)\
**Post date:** [May 3, 2025, 5:27am UTC](https://boards.straightdope.com/t/xkcd-thread/854574/4233 "2025-05-03T05:27:36Z")

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> [@dtilque](#):
>
> “Unstoppable force-carrying particles can’t interact with immovable matter by definition.”

Yep!

> [@Immoveable V Unstoppable](https://boards.straightdope.com/t/immoveable-v-unstoppable/474238/22):
>
> Not so. The can exist in the same universe, so long as they never interact.

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