Ah, yet another Elon Musk invention. Will it work as well as the SpeceX rockets or cave submarine and the promised level 5 self-driving..
I sure hope it works as well as SpaceX and the self driving, both are amazing marvels already. And aren't even complete yet!
I don't know if you noticed, but the SpaceX rockets work extremely well.
But the cave submarine and the self driving do not. GP forgot to add a question mark.
How are the wildly successful and impressive accomplishments of SpaceX comparable to the cave submarine or nonexistent level5 self-driving? One of these things is not like the others.
That is what the comment is saying: will this work like one of Musk's "successes" or like one of Musk's "failures".