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Grey

@jgreyfriend21,032 subscribers

Building cool stuff. Co-Founder @trykashu. Systems engr

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Between 1800 & 1910, America’s banking system was broken: • The U.S. had no central authority over currency • Over 30,000 types of banknotes were in circulation • Banks failed regularly (major panics in 1873, 1893, 1907) • No lender of last resort meant a single rumor could cause a bank run Wall Street was vulnerable. The public had lost trust. A system reboot was needed.

Between 1800 & 1910, America’s banking system was broken: • The U.S. had no central authority over currency • Over 30,000 types of banknotes were in circulation • Banks failed regularly (major panics in 1873, 1893, 1907) • No lender of last resort meant a single rumor could cause a bank run Wall Street was vulnerable. The public had lost trust. A system reboot was needed.

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Elon Musk in 2008: "NASA was going to pay Russia $70M per astronaut. SpaceX could do it for $15M" Musk is presenting SpaceX to a small audience. He shows a video of the Falcon 9 first stage firing: "This is almost a million pounds of thrust in vacuum, about four times the maximum thrust of a 747. It's pretty much Armageddon down there. You don't want to be standing at the base of that test stand." He explains the NASA contract: "The contract SpaceX has right now is to demonstrate cargo transfer to the space station and return of experiments to Earth. What we're hoping NASA will exercise is an option on that contract to also carry astronauts. I think they will exercise that option fairly soon." On the coming gap in American spaceflight: "The Space Shuttle is retiring in 2010. So unless our spacecraft is active, the US will not have the ability to send people to orbit. For about five or six years, unless SpaceX is successful, there will be no American manned space capability. There'll just be the Russians." He describes the situation bluntly: "The Russians are charging us over $70 million per seat after the shuttle retires. They got us over a barrel and they're doing us hard. We'll spend half a billion dollars per year on the Russians just buying tickets for six or seven astronauts to go to the space station." Musk shares SpaceX's cost: "Our cost per person, even assuming no reusability, assuming every bit of it is expended and no refurbishment, is about $15 million per person. And it's us. The jobs are here. So I think it's kind of a no-brainer. But no-brainers in Washington DC don't always happen." On Congress: "We've been given money for the cargo portion but not for the manned portion. The amount we're asking for to get this done is $300 million. For every year that we're dependent on the Russians, we have to send them half a billion dollars. It seems kind of ludicrous. But anyway, that's DC." Someone asks about the space elevator: "The idea is you have this really long cable, like 40 to 60,000 miles long, with the ends way out in space and the base on Earth. There are a lot of issues with the space elevator. It relies on super strong materials, carbon nanotubes. Until we build, say, a carbon nanotube footbridge, then I think we should not really be thinking too much about building a 60,000-mile elevator. Not this century." On space solar power: "If there's anyone in the world who should love space solar power, it's me. I'm chairman and the largest shareholder of a solar company called SolarCity, and I've got a rocket company. So it should be perfect. Unfortunately, I don't think space solar power makes sense. I wish it did because that'd be awesome. But even if you assume it costs zero to transport the solar panels to space, when you take into account the equipment to convert the energy to microwaves, then equipment on the ground to convert it back to electricity, just that capital cost blows you out of the water. It's not competitive with terrestrial solar power. So there's no point in even thinking about it." On fuel costs: "The fuel and oxidizer cost is really super low. For our big rocket, it's only a couple hundred thousand dollars. For our small rocket, it's about $30,000 or $40,000. If you just look at the propellant cost, it's very, very cheap." On the long-term goal: "One of the design goals for Falcon 9 is that it can go from in the hangar to in the air in under 60 minutes, which would be super fast for a rocket, particularly a big rocket. It's going to take several flights before we get there. But as long as we lay the foundation and make sure the design is capable of that, we can at least have the possibility of getting to a flight an hour in the future."

Grey

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