On 9 Jan 2019 at 9:53, Catherine Berry wrote:

> There's always *some* hope. But extreme skepticism is warranted here.
> FTL travel would break causality in some inertial frames, and that's
> kind of a big deal. :)

A number of physicists aren't especially bothered by that.

As long as *global* causality is preserved, they aree ok with
breaking *local* causality.

This does make for "interesting" restrictions on things though. :-)

--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com