The human species — perhaps any species — can't resist that button. It's the metaphor that taunts us. We weren't meant to fly,  outrace horses, or share the world with sentient robots. (That's right. They're coming.)  We  pushed off in Africa and covered the globe.  We pushed harder still and kicked up some moon dust.

Thanks for pushing the Don't Push key. That's why it's there. It's why we're here.*

*Disclaimer. This advice should be ignored if you're standing in a missile silo, admiring a life support machine, or reading Don't Push on someone's t-shirt while standing on a cliff.