X @Elon Musk

RT X Freeze (@XFreeze)Walter Isaacson explains exactly how Elon Musk uses first principles thinking to build rockets:When young Elon wanted to send people to space, he first tried buying used rockets from Russia. They jacked him around - it didn’t workSo he went back to first principles.He asked:Exactly how much does each material in a rocket cost? How much is the Inconel? How much is the carbon fiber? How much is the fuel?What’s the total cost of the raw materials compared to the price of a finished rocket ...