Can science prove that consciousness can exist without a functioning brain? Can it prove that everything is conscious?
Can science and math prove open individualism, monopsychism, existence monism, or panpsychism? Science and math are useless and barely help us understand the true nature of reality and consciousness. Maybe we aren't smart enough yet. Maybe we couldn't comprehend it. Maybe humans aren't as intelligent as we think. Maybe I am you and you are me.

Pic related: it's me, which is also her, which is also you, which is also me.