Since this entire thread is 'equipped to survive' off topic I'll venture to ask a question that's been puzzling me.
I've heard the distances are so great that mankind will never leave the solar system. Is this true?
The Sock
Most science fiction is predicated upon faster-than-light travel. Physics says that faster-than-light is physically impossible. There is speculation about warped space and wormholes but, as far as anyone can tell, crossing space at speeds faster-than-light seems to be impossible. Even if technically possible it might require near infinite amounts of energy. As I understand it the entire output of our sun wouldn't drive even a small capsule faster-than-light.
Without faster-than-light travel the closest known solar system is over four light-years away. At 50% of light-speed, far faster than we have ever driven a spaceship, your talking eight years. Using just stored food, water, air your talking about a huge ship. And what happens if after they get there they find out there is something so very wrong they can't make a go of colonizing. Do they come back, plan for twice the material resources, or do we plan on leaving them hang.
The result of all this is that you have to make a much bigger commitment to cover the distances. In every step of a design process a larger ship multiplies the requirements on other systems. Heavier ship require bigger engines. Which use more fuel. Which means more structure. The longer the trip the more crew you need if they are to stay sane. Larger crews uses more food, water, air. Which means a larger structure and larger engines ...
Some science fiction writers describe 'planet' ships that are self-contained ecosystems. With a ship so large and a crew so numerous that they may not, over the decades, remember that they are on a ship. Ships where the crew have children and it takes decades, possibly hundreds of years, generations, to get to distant stars.
Yes, it is a grand vision. Far more complicated than Star Trek and Star Wars where you only have to pack a lunch to visit distant stars. It is anyone's guess that we might develop the technology, wealth and global will to build a ship large enough to get colonists to even the nearest stars. We have a very long way to go and our apparent inability to travel faster-than-light makes it even harder. Not impossible. Just more difficult.