How do they not know which slit the electrons are going through when they're the ones pointing the gun & locking it into position & shooting them? MID-FLIGHT WHEN NO ONE'S LOOKIN' THE PARTICLES SMEAR OUT INTO A PROBABILITY WAVE DISTRIBUTION WHICH GOES THRU BOTH OR NEITHER OR ONE OR THE OTHER SLITS, NO ONE KNOWS FOR SURE, BUT SHOWS UP IN A DEFINITE LOCATION ONE PARTICLE AT A TIME ACCORDING TO THE DETECTOR SCREEN ON THE OTHER SIDE AS IF THAT NEVER HAPPENED & OR THE UNIVERSE & OR NATURE KNOW WE'RE LOOKIN' & AS IF OUR MEASURING CHANGES & OR DETERMINES & OR CAUSES THE RESULT & OR REALITY! THAT SOUNDS LIKE A LOAD OF MALARKY HORSE PUCKY MUMBO JUMBO COUNTERINTUITIVE BACKWARDS BOGUS, AND MY GREAT GREAT GRANDFATHER WOULD SPIT ON IT! HE COULDN'T EVEN SPELL TRIGONOMETRY MUCH LESS DO ANY! LITTLE THINGS ACT THE SAME WAY WHETHER WE'RE LOOKIN' OR NOT!