Engineers in the factory - essential to Elon’s vision. “In a single building, we can create a mask, make the chip, test the chip, make another mask, and have a fast recursive loop for improving the chip design. … Try wild and crazy things, which you can do if you've got that fast iteration loop … to make it, test it and then change the design." His sense of how to make innovation quick, efficient, speedy, effective, and fast is so far ahead. Also rapid. Shorten the iteration loop. Remove roadblocks.