 What I really want to try to achieve here is to make Mars seem possible. There are really two fundamental paths. One path is we stay on Earth forever and then there will be some eventual extinction event. The alternative is to become a space-faring civilization and a multi-planet species. Why Mars? They're actually remarkably close in a lot of ways. In fact, we now believe that early Mars was a lot like Earth. So we just need to change that bottom row. Currently we have 7 billion people on Earth and zero on Mars. The issue that we have today is that there's no intersection of sets of people who want to go and can afford to go. An optimistic cost number would be about $10 billion a person. And if we get the cost of moving to Mars to be roughly equivalent to a median house price in the US, which is around $200,000, then I think the probability of establishing a self-sustaining civilization is very high. So it is a bit tricky. We have to figure out how to improve the cost of trips to Mars by 5 million percent. These are the key elements that are needed in order to achieve the 4.5-border magnitude improvement. With frequent flights, you can take something like an aircraft that costs $90 million. If it were single use, you'd have to pay half a million dollars per flight. So picking the right propellant is also important. I think this is maybe the three main choices. Methane actually was the clear winner. This is a simulation of the overall system. This is to give you a sense of size. So I think at least 100 people per trip is the right order of magnitude. I think we may actually end up expanding the crew section and ultimately taking more like 200 or more people per flight in order to reduce the cost per person. So it's probably somewhere between maybe 40 to 100 years to achieve a fully self-sustaining civilization on Mars. It's made primarily of an advanced carbon fiber. And like I said, this is all designed so that you could actually lose multiple engines even at lift off or anywhere in flights and continue the mission safely. The trip time at 6 kilometers per second, departure velocity can be as low as 80 days. Ultimately I suspect that you'd see Mars transit times of as little as 30 days in the more distant future. I mean in order to make it appealing and increase that portion of the Venn diagram of people who actually want to go, it's got to be really fun and exciting. The crew compartment or the occupant compartment is set up so that you can do zero-g games. You can float around. There will be like movies, lecture halls, cabins, a restaurant. It will be like really fun to go. You're going to have a great time. Really the key is making this affordable to almost anyone who wants to go. The architecture allows for a cost per ticket of less than $200,000. Maybe as little as $100,000 depending upon how much mass a person takes. What about beyond Mars? There's obviously the rocket booster, the spaceship, the tanker and the propellant plant. If you have all of those four elements, you can actually go anywhere in the solar system by planet hopping or moon hopping. By establishing a propellant depot, this system really gives you freedom to go anywhere you want in the greater solar system. This is to give you a sense of size. It's quite big. You want to go out there with the Freeman legs? Go out and except the spiritualels. And I'll tell you what kind of spiritual or EnjoyThation is.