A case for reincarnation

I know I used to be
a homo habilis
in a previous life.
I constructed blades
from stones
and meals from
carcasses.
I protected my
cave
from predators
and created
fire.
I spoke with
grunts
and moans
and ate flesh
raw.
I did these things
until I died.
Maybe from a leopard
or disease,
but I was born again,
and grew
into a man
who lives in a
house
with a
yard
and two
children.
A man who needs
to write poems
about his
previous life
as a caveman.