As Brian Chesky says, "If you can imagine it, you can create it".
What a silly thing to say. A quick glance at pretty much any sci-fi novel proves that. Go on, go build me a light-sabre, capable of cutting through metre-thick bulkheads. Once you've finished with that, I'd like a time machine so I can go back in time and look at dinosaurs, and also a perpetual motion machine. I leave the order of the last two up to you.
I don't think that quote is meant to be taken literally. It's more a commentary on how you can accomplish most things you can put your mind to; the only limits you place are those you impose on yourself.
And I don't know, but it might be possible to create a light-sabre. Who knows. I am sure that we live with technology today that seemed just as impossible 100 years ago.
What a silly thing to say. A quick glance at pretty much any sci-fi novel proves that. Go on, go build me a light-sabre, capable of cutting through metre-thick bulkheads. Once you've finished with that, I'd like a time machine so I can go back in time and look at dinosaurs, and also a perpetual motion machine. I leave the order of the last two up to you.