Thankfully,
neuroscience gives some cause for
optimism.
Philosopher-cum-cognitive scientist Joshua
Greene of
Harvard
University and his
colleagues
have
used functional magnetic resonance imaging to
map the brain as
it
churns over
moral
problems
, inspired by a classic pair
of dilemmas from the
annals of moral
philosophy called the Trolley Problem and the
Footbridge
Problem.
In the first, an out-of-control trolley is
heading down a rail track,
ahead of which are
five hikers unaware of the looming threat. On
the bank where
you’re
standing is a switch that, if flicked, will send
the trolley on to
another track on
which just one person is walking. If you do
nothing, five
people
die; flick the switch and just one person will
die
.