2) The technology to land rockets vertically has existed for a long time, going back to the lunar lander at least. Landing the Lunar Lander on the moon is comp

2) The technology to land rockets vertically has existed for a long time, going back to the lunar lander at least. Landing the Lunar Lander on the moon is completely different to landing a tall, thin high-centre of gravity rocket full of explosive fuel, using AI because there's no crew onboard. Or did you mean something else? I'm pretty sure the first vertical landing of a rocket was only achieved in the last few years.