Nobody knows for sure if Hyperloop, Self driving Teslas, Neuralink, Starship, Cybertruck, Starlink, etc. are going to work out. But we know with 100% certainty

Nobody knows for sure if Hyperloop, Self driving Teslas, Neuralink, Starship, Cybertruck, Starlink, etc. are going to work out. But we know with 100% certainty we'll never find out unless we try.