Cutting edge theories concerning the space-time continuum and practical approaches to interstellar travel aren't really my bag, but Einstein said "Time is an illusion" and Stephen Hawking apparently did a lecture on the common fictional idea of a "warp" drive and that it's not necessarily a nutso concept.

I haven't bothered to read it, but it is available online:

http://www.hawking.org.uk/space-and-time-warps.html

I'm content to mostly limit my exposure to such topics to having my mind periodically blown by my adult sons, then fairly promptly forgetting most of what they said. Physics just isn't really my thing.