This. Karl Benz and the Wright Brothers were mocked too.
If you've got a big idea, pursue it. Chase it. Know the people that are pointing fingers and laughing at you simply don't have an idea to pursue, and lift themselves up by putting you down.
“Big ideas are so hard to recognize, so fragile, so easy to kill. Don’t forget that, all of you who don’t have them.”
It’s the exact same use case as launching the old roadster into solar orbit near Mars. It’s sheer audacity. It is an example of what we can do, and more than that, what we can _afford_ to do. It is youthful exuberance and power in full display. It is a message to the rest of the world: “You can’t catch us.”
Cue: We are the champions.