at what point do you become a cyborg like lets say i hold a gun and dont let go for the rest of my life, am i a cyborg?

maybe

Explanation:

a bionic human

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.