Originally Posted by
Kapusta
As mentioned above, they technically push instead of pull, but the result is the same, and it does matter which you use.
Yes, in a Bowden cable and housing system as found on bikes, pull of the cable and push of the housing are equal and opposite forces, they are equivalent and achieve the same thing. It doesn't work any other way.
Sorry my comment was meant to be ironic, not start an argument , because this is clearly the basis of how all bike cables function. Just poking fun with a bit of Newton.