Machines should exist.

A machine that should exist, especially durin exons times, is the memory stick for the brain in the beaging this would be cheating but with time change this would be like Wikipedia, without Wikipedia nobody would pass “ESO”. IF the memory stick existed nobody would need to do exams becouse you could insert the history , the problems of Maths, etc. And the last thing we could do is clean our own heads.

The other machine that sould exist is a chip in your head that snock you if you say or do something stupid. A exampls of this is if somebody offend people, hurt animals or tried to other people it would snock you . Using this machine the wold be more better quiter becouse stupied people would't talk. I stole this idea from Big Bang Theory, a comedy sirie.