Question why is it so easy today to build reusable rockets? Is it because the onboard cpu speed of the chips can solve more granular control problems with low latency?
This doesn't feel like that much of an accomplishment relatively speaking. It's a smallish rocket that went up and down. Very far away from landing something 100 times heavier from orbit.
Nobody is propulsively landing anything from orbit yet. (Dragon is supposedly capable of it, as a backup if the chutes fail, but has never done so.)