Thread:Wormulon/@comment-5723091-20130324010228/@comment-1073312-20130324140213

I made a fiction about proper and conformal time. Tachyons are not the only way to travel faster than the speed of light or violate causality. Thanks to the relativity of simultaneity, any FTL capable vehicle could travel in time.

The problem with tachyons, one that almost makes me want to cancel my Tachyon Shift Drive (though I won't because it is useful to my fiction) is that most models try to remove tachyons from the theory. They may not exist in the real world. I use my tachyonic shift drive because it is unhindered by the DCP's subspace maelstreom designed to make enemy invaders using warp or hyperspace find it hard to navigate, while T Shift DCP ships are unaffected. In the SporeWikiverse, we have other ways to achieve faster than light, which could violate causality. The SporeWiki also follows the Many Worlds Interpretation, so violating causality shouldn't cause any paradoxes.

I would prefer it if you didn't use tachyons as an FTL drive, just to keep certain concepts used in my fiction as original as I can. However, tachyons are not required for those effects you want. And any FTL-capable civilisation would be able to replicate those effects so you wouldn't be deemed overpowered.