Not only is it neccesary, but essential. Any attempt of an "objective" evaluation would require cognisance of what is in objective existence. As the only way to evaluate the "objective" reality is by using our senses and by using them to interpret experiments we set up based upon the evidence of our senses we do not have access to any objective reality as such. If you need more, try Bishop Berkley, Hume, Kant, Nietsche for starters (I'll only recommend the light reading on the subject). |
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