Input, to enter and then place something.
Output, to exit and place it somewhere else.
InOut, enter and exit.
Inner, to enter more deeply.
Outer, exit to the furthered the reaches.
But why is this important?
Well I can’t tell you that, or can I!
Ok I will it is important as they are opposites, which means they are in balance.
They are in and yo
Or yin and yang
Black and white
Darkness and Light
Day and Night
Or to put it plainly
They are in or Out!

