i was thinking, maybe there could be a new type of wall which wifi signals couldn't pas through, So this means that a 22 degree's wifi can only affect another 22degrees wifi which is not surrounded in this new wall.

Element: Wifi wall

Element color: doesn't matter (any color is okay)

Properties: blocks wifi signals from reaching other wifi's on the other side of this wall.

benefits:

- increase amount of wifi's capable of using (could have hundreds of channels :)

- many wifi's can be 22 degrees without affecting eachother

- could block emp so wifi's channels can't be changed

- water/other substance's can't interfere with wifi's

- etc...