Must be nice to have unlimited budget, unlimited power supply, unlimited air, water and food supply. These spaceships look like gigantic luxury cruisers. And they look like they could house hundreds, if not thousands of people. I am pretty sure that when humans travel to other planets, it will be a very different, and dangerous form of travel. think Steampunk instead of Star Wars, with extremely limited supplies, and short lifespans. science and physics get in the way!