Is there an Objective Reality?

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There’s a split in philosophy between Realism (the view that there is a reality independent of any beliefs or perceptions) and Idealism (the view that reality is a product of our ideas).
We might think of science as the objective study of reality. But how objective is it? What does the word “objective” really mean?
Some people see objective knowledge as being more reliable than subjective knowledge. But Rene Descartes famously reasoned “I doubt, I think, therefore I am”, concluding on the basis of his own experience that the one thing he couldn’t doubt was his own existence.
From the perspective of Avaita Vidanta philosophy, what we consider objective and subjective reality are an illusion, because what we observe and what we perceive are ever changing, the only true reality being the Absolute- from which the existence we experience arises and goes back to.
Lets discuss!
Handout, including quotes:
https://docs.google.com/document/d/17qeMAzwmaQlraYt2qH5hV2M_fo875dY2/edit?usp=sharing&ouid=108914814178375137957&rtpof=true&sd=true
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Is there an Objective Reality?