I think even a Mars mission, would be a one way mission, and these people are talking about traveling to the NEAREST star? Are they kidding? At 36,000 miles per hour, it might take them 75,000 years to get there. I don’t think it will work. Maybe in the millennial kingdom, we can travel there, at the speed of thought, but until then, it belongs in the comic books.
Even at 36000 miles per second it would still take many years to get there. Probably to discover that there is nothing there.