obj truth

  When we say that there is an objective truth to things, we are not wrong. We should remember though, that our definitions of reality adhere to our current perceptions that control it; that is to say, the pockets of time in which our world views are temporarily solid and immovable. 

But this does not dispute the fact that change is immutable. For instance, we can observe the pen that I am writing with. This pen looks like a pen, feels like a pen and is a pen. That is my reality. It may differ with other pens in structure or material, but it does not change the fact that it is what it is: a convenient vessel for ink that leaves imprints on absorbent or tactile surfaces. 

Now consider that we discover properties, not just alternating perspectives and uses, but properties new and unique to the idea of a pen, properties that inherently deny our previous understanding of the pen, properties that make the pen in its entirety something else entirely. In this manner, our reality would change, as realities are limited by our knowledge. 

Our reality is limited by our knowledge. In science, reality changes constantly, scientific facts are often altered or disregarded after more information is garnered. There is an absolute objective reality, but that reality will never truly be known to us, so our realities are therefore subjective.

Take the subjectivity of experience in perception itself; heck, we can even go deeper into the division of into vision itself. Snakes, Salmon, Piranhas see infrared light, and they do not know vision without it. Predators perceive the world with depth vision while prey usually see with field vision. Our biological structures already introduce countless factors to anchor the subjectivity in each of our experiences; so even if we can share mediums of communication with different species, there won't be an objective truth or reality to be understood per se.

Of course, people do try to establish the superiorities of certain realities over others, but what is drives the interest to deem such advances as necessary?