looking around

Have you ever looked around and considered the insanity of the things humans have created? I’m talking about microwaves, airplanes, radios, skyscrapers, cell phones, computers, submarines, electric razors, all things electric, sunglasses, space shuttles, and a thousand other things we casually walk by and use every day without giving it a second thought. Yes, you can quote a text, or laws of physics, or whatever, but how did we get from grunting to knowing how to leave Earth? Seems like utter lunacy. They’d have burned us at the stake 500 years ago for just a whisper of these things.