If you only had one job and you'd been doing it professionally for years and years, you'd think you'd be fantastic at it. Hendrix could play an out of tune guitar and bend the strings to bring it into pitch. Old machinists can feel a screw with their fingers and tell you the thread pitch, and identify what type of steel you're working with by the sparks it throws when you hit it with a grinder. Professional truckers can back up trailers with free pivots in a smoother arc than I can drive my car. Meter readers can go to an apartment complex and read 8 meters at once, and work out the math in their head on the way to the next stop. They say we only use 11% of our brains, and I'm betting the other 89% is there for adaptation (and good ol' laziness).
So why can't a shopping cart company make a cart with 4 wheels that touch the floor? How is it possible that after 25 years cd cases still suck so hard? Why can't the vending machine lady load the snacks so that they actually fall out when you order one? Is it really possible that this entire rant is because of a stuck bag of skittles?