A

 it possible that our "consciousness" exists outside of our physical brains?

The question is:

Is it possible that our "consciousness" exists outside of our physical brains?

We only know consciousness and the cosmos to exist simultaneously.

We have zero evidence for stand-alone consciousness, or stand-alone cosmos.

How will stand-alone cosmos announce itself, and to whom?

Be open to the possibility that there is truly no evidence for a subject and object division in the field of perception.

Nobody has seen the dividing wall.

In the very act of observation, the apparent perceiving mechanism, the apparent perceiving subject and the apparent perceived object, viz. the cosmos, all emerge simultaneously.

In the absence of all obseration, who can say what is out there?

Quantum mechanics is pointing to the possibility that, in the absence of all observation, there is NO-THING out there.

This NO-THING may be called EXISTENCE in deep peace and un-manifest POTENTIAL and in SILENCE.