Most visitors online was 1660 , on 12 Dec 2020
People survived for centuries before electricity, at least in terms of electricity that will run a clock. I think it might be more appropriate to say that life as we know it would change drastically. Having experienced no electricity for up to a week at a time due to natural disasters, it may not have been a pleasant experience, but we did survive.Like I said, life is gone if electricity disappears. Also would change how everything works beyond the universe.