There is a YouTube channel that does nothing but show what musk is posting. Last night there was a huge discussion of the space economy that musk envisions. I barely understood it. Some use of solar to power data centers and such. There was talk of using starlink for distributed power in the same way as Tesla cars might be used for distributed compute.
Generally Tesla stock looks like it can easily 10x over the coming years.
The only way I know of to get a piece of SpaceX is via a basket of stocks traded under BFGIX -- minimum investment $1 million, and there's a low percent annual fee. Good appreciation.