Quote:
Originally Posted by jayswin
A civilization hundreds or thousands of years more advanced than ours probably could travel light years in ways we could only dream of in sci-fi movies, even though they're still not likely to reach earth, specifically. Point being that the laws of physics that we currently understand won't likely be the laws of physics that make quick travel impossible.
We're dealing with space travel in terms of a few decades of serious attempts. That's a nano second in the history of a solar system, with literally billions of stars and planets out there.
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The laws of physics are defined by what the universe shows us, even if an advanced life form figured out a way to go light speed it's simply not survivable. If an object tries to travel 186,000 MPS, its mass becomes infinite,(so does the energy required to move it) For this reason, no normal object can travel as fast or faster than the speed of light. The hardest diamond on earth would turn to invisible molecule dust.
Lets say a civilization in the Proxima Centauri system found a way to travel 1/10 the speed of light (670 million MPH) and live to tell about it, it would still take them over 42 years to reach earth, and that's just our closest star system.
Why would they bother?