Chummy wrote:
Just pinch yourself to make sure.
I think therefore I am.... Kraftie quoting famous philisopher René Descartes is great.
I agree.
You do exist, but feeling, or perspective is subjective. A sound wave, can be heard differently through the eyes of different people/animals/living beings for that matter. Same for color, being a spectrum of waves too, who knows if the computer I am typing on is blue. My dog might see it in black. Same situations can envoke different feelings and reactions from two different people.
Indeed, *all* sensory perception is unique to the person; therefore perceived reality is subjective to some degree. However, somewhere along the way we learned how to measure the various forms of energy (mechanical, electrical, light, heat, etc) that trigger perception in our nervous systems. In that respect we very much can ascertain that there is a baseline from which each person deviates in terms of accuracy. And that's not even layering on the higher level functions of association or filtering involved in conscious perception!
Interestingly, once the computer age began philosophers began to examine the idea of consciousness in a slightly different light, as if it could exist independent of the nervous system, similar to computer code. While this may have application for examining specific problems, I think it will be seen as a mistake some years in the future as we are so tightly tied to our bodies. Yet, some features are hardwired and develop independent of the body, while others develop in reaction to it, and still others at the very highest levels of processing are entirely dynamic. Consciousness appears to span all three layers.
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“For small creatures such as we the vastness is bearable only through love.”
―Carl Sagan