I kind of doubt that Twitter/X is any sort of net benefit. Boring company was a wash, Tesla is a net positive, although it also has some issues. Paypal was a huge advancement, although it's still deeply flawed. Grok may end up important, but right now it's kind of just hovering around 'acceptable' second-tier.

But SpaceX has the potential of driving some of the grandest and most revolutionary accomplishments of the 21st century. That's going to be what determines if high-schoolers recognize his name two hundred years from now.