Is Time Travel Possible with Speed of Light?

[loffus]

Hello! My dad reckons if you moved faster than the speed of light you would travel forward in time? Am I right in thinking this is ridiculous!

 

[S_Happens]

I'm sitting here on the couch hardly moving, except my fingers to type this, and I'm traveling forward in time...

 

[Chronos]

Actually, FTL travel implies you travel backwards in time.

 

[Pythagorean]

where does lightning come into this...?

 

[Simon Bridge]

Most accessible description I've found:
http://www.physicsguy.com/ftl/html/FTL_part4.html
... actually read all the parts. This one deals with causality violation and travel, yes, backwards in time.