SpaceX and Neuralink are still WIP and super relevant to technological progress. We need to get off this planet eventually and Brain Machine Interfaces will be how everyone communicates with digital systems eventually.

Starlink is functional - IIRC it was just meant to be a money-making project as a subsidiary of SpaceX.

He did not found Tesla but that's irrelevant - he capitalised it from an embryonic stage, led it and spearheaded a huge EV movement. That's a huge accomplishment.

Seems like he's fucking up with Twitter atm but time will tell.