# Giving exotic matter the finger **URL:** \ **Category:** Factual Questions\ **Created:** [July 14, 2008, 10:40am UTC](https://boards.straightdope.com/t/giving-exotic-matter-the-finger/456416 "2008-07-14T10:40:47Z")\ **Posts on this page:** 3\ **Page:** 2
**Author:** ![Enola\_Straight](https://avatars.discourse-cdn.com/v4/letter/e/dec6dc/32.png) [@Enola\_Straight](https://boards.straightdope.com/u/Enola_Straight)\ **Post date:** [July 17, 2008, 5:02pm UTC](https://boards.straightdope.com/t/giving-exotic-matter-the-finger/456416/21 "2008-07-17T17:02:13Z")
I unsuccessfully found a cite to confirm this, but here’s someone asking if this were indeed possible: [http://209.85.215.104/search?q=cache:FJ8m6dH8GA0J:www.physicsforums.com/showthread.php%3Ft%3D208308+"exotic+matter"+cancel&hl=en&ct=clnk&cd=3&gl=us](http://209.85.215.104/search?q=cache:FJ8m6dH8GA0J:www.physicsforums.com/showthread.php%3Ft%3D208308+%22exotic+matter%22+cancel&hl=en&ct=clnk&cd=3&gl=us) ---
**Author:** ![Ludovic](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@Ludovic](https://boards.straightdope.com/u/Ludovic)\ **Post date:** [July 17, 2008, 5:36pm UTC](https://boards.straightdope.com/t/giving-exotic-matter-the-finger/456416/22 "2008-07-17T17:36:13Z")
How would exotic matter interact with itself gravitationally? I assume they’d repel each other gravitationally because three negatives makes a negative again? How about electrically? Would opposites charges repel and likes attract because there isn’t a mass component in the force, only in the acceleration? ---
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [July 17, 2008, 6:24pm UTC](https://boards.straightdope.com/t/giving-exotic-matter-the-finger/456416/23 "2008-07-17T18:24:36Z")
Assuming that by “repel”, you mean “accelerate away from each other”, and by “attract”, you mean “accelerate towards each other”, then yes on all counts. [Previous page](https://boards.straightdope.com/t/giving-exotic-matter-the-finger/456416.md?page=1)