text: what is the worst invention ever created and why? -in your opinion. probably the automobile- killed more people than anything else. it's an outstanding question- deserves an outstanding answer. i dont know if there is one singular invention that qualifies, but in all seriousness, if i had to give one answer, it would be the hydrogen bomb. has no other purpose than to kill zillions, wipe out the entire human race. it is not a "useful" invention in the sense of harnessing its' energy or anything like that- its just the one most destructive thing ever created/invented, no?