the Locke down (a split mind)

if i were someone else
who may i be
could you split me in half
or transplant me
into another body
and i wonder if i could
if i could be two persons
in one cranium?

and if i were this other man
homo sapiens for all to see
would i still be
an immaterial substance
a soul constant,
and unchanging.
would this other self
have continuity
if he had lost his mind
what would time mean
could he be praised or blamed
for his moral responsibility
can we be certain
of his forensic identity