facts are subjective

facts are subjective in that they are only a fact if during a conversation or specific frame of reference we agree they are facts. E.g. The Earth is a globe and that's a fact. Really, because its kind of fat in the middle and that's a fact. Really, because its fatter in the southern hemisphere than it is in the northern hemisphere so really its a pear shape? Really, what percentage of difference between diameters of a hemisphere qualify as pear shaped? Does "=" signify and equation or an assignment? In some languages your simple equation would be written "==" not "=", so yes subjective.