> We'll never be a spacefaring species, the universe is way too big (we can't even explore our solar system in any meaningful way) and energy requirements for f

> We'll never be a spacefaring species, the universe is way too big (we can't even explore our solar system in any meaningful way) and energy requirements for faster travel are simply too high. I can state flatly that heavier than air flying machines are impossible. — Lord Kelvin, 1895 https://www.xaprb.com/blog/flight-is-impossible/ https://www.xaprb.com/blog/flight-is-impossible/