Roll back technology by 100 years and live without nuclear bombs, ballistic missiles, antibiotics, personal computers, an interstate highway system, television, the Internet, a Global Positioning System, organ transplants, dialysis, gender-correction surgery, lasers, microwave ovens, radar, video games, Post-It Notes, LED lighting, "talkies", digital cameras, thumb drives, MP3 players, 3D printers and pre-sliced bread.
Roll back technology by 200 years and live without internal combustion engines, automobiles, machine guns, dynamite, electricity, electric batteries, anesthesia, radio, airplanes, telephones, stethoscopes, soda fountains, typewriters, the Braille Alphabet, sewing machines, refrigerators, air conditioners, the Morse Code, staplers, automatic dishwashers, pasteurization, the tin can, movies, toilet paper, light bulbs, Coca-Cola, contact lenses, zippers, roller coasts and vacuum cleaners.
Roll back technology by 300 years and live without guillotines, steam engines, submarines, pianos, fire extinguishers, thermometers, lightning rods, dictionaries, sextants, chronometers, carbonated water, the telegraph, bifocals, parachutes, hot-air balloons, bicycles, steamboats, vaccinations, ambulances and flush toilets.
Just sayin'...
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.