Were they invented purely because of the math or do they actually have basis in measurable reality?

 

 

 

And if energy waves produce gravity, would tachyon waves produce anti-gravity?

Well, I know they're in Star Trek!

 

Try this one in http://www.startrek.com on the forums.

Or I could wait for a real answer here.

 

 

 

[edit]

 

Isn't the universes expansion rate inreasing?

 

I bet the immergence of mass and energy created an antigravitational tachyon pool (or something simmilar) at the center of the universe.  With a net energy of 0, the universe aught to have a deficite of energy somewhere. 

yea

Tachyons are a very real part of some of the modern cosmological theories, not just some Star Trek concept that has no basis in reality.

 

A good place to check out how real the theories are is http://arxiv.org, and search for tachyon.

Cool, thx.