A lot of people think that Faster-than-light (superluminal or FTL) travel is the stuff of kooky mad scientists-wanna-bes (indeed, Albert Einstein himself had declared that it is impossible).
I get a lot of submissions from crazy people claiming that they've discovered fundamental flaws in physics or that they've come up with a completely novel Theory of Everything, and those go straight to the junk pile. But when this came from an emeritus physics professor from Rice University, I was intrigued.
Here's Robert Haymes, Professor Emeritus of Physics and Astronomy at Rice University, wrote about FTL travel:
Presented below is a concept of how it might be possible to travel in space at speeds in excess of the speed of light in vacuum. It is presented now because of my firm conviction that immediate actions are necessary to Save Our Species; steadily increasing overpopulation of the planet Earth by humanity, coupled with a proliferation of weapons of mass destruction, signals that we may soon wipe the planet’s surface clear of civilization, if not of life itself. One mode of salvation would be to establish self-sustaining branches of humanity on other planets. It does not appear that any other habitable planets exist within our solar system. However the Milky Way Galaxy contains hundreds of billions of stars, many if not all of which have planets orbiting them. Some of those planets are most likely habitable. Astronomers generally believe that these stars are separated by distances averaging a few light years. To reach them in practical amounts of time will require faster than light travel.
Link - Thanks Nancy! | Another interesting article: Is Faster-Than-Light Travel or Communication Possible? by Philip Gibbs
Personally, I think the odds are higher that humanity will survive whatever it does to itself than either the chances of developing faster-than-light travel cheaply enough to transport a significant number of people off-planet, or the chances of adapting to the new ecosystem. At least in the next few centuries.
BTW: There is no evidence in all the antimatter we've actually produced that it 'repels' light. And when you mix matter and anti-matter, there is no way to direct the thrust of gamma rays.....
{Golgafrincham's} people decided it was time to rid themselves of an entire useless third of their population, and so the descendants of the Circling Poets concocted a story that their planet would shortly be destroyed in a great catastrophe. (It was apparently under threat from a "mutant star goat"). The useless third of the population (consisting of hairdressers, tired TV producers*, insurance salesmen, personnel officers, security guards, management consultants, telephone sanitizers and the like) were packed into the B-Ark, one of three giant Ark spaceships, and told that everyone else would follow shortly in the other two. The other two thirds of the population, of course, did not follow and "led full, rich and happy lives until they were all suddenly wiped out by a virulent disease contracted from a dirty telephone".
http://en.wikipedia.org/wiki/Milliways#Golgafrincham