
the
"brain-in-a-vat hypothesis" has been used by
contemporary philosophers such as
Jonathon Dancy to
argue for the notion that only one thing that can be
known and verified -
and that one thing is
the existence of the self the
brain-in-a-vat hypothesis goes like this -
there is no way to disprove the possibility that you are
a disembodied brain, suspended in a solution, in a vat,
and wired to a computer -
a computer that is feeding you a virtual reality experience
and since you can not rule out the possibility that you are
a brain in a vat, you must be skeptical of all that you believe
to be true -
the ONLY thing you can know for sure is that you exist,
as a consciousness, a Self