Suppose some wizard casts a spell to make your neurons twice as thick, with everything still functioning normally. Suppose furthermore that for some reason the counterspell involves being hit by a trolley. Did the trolley kill someone?
Now ask the same question where the neurons are duplicated and each neuron is replaced by a pair of two running in parallel.
Now ask the same question where the parallel sets are running in physically separated brains....
Suppose some wizard casts a spell to make your neurons twice as thick, with everything still functioning normally. Suppose furthermore that for some reason the counterspell involves being hit by a trolley. Did the trolley kill someone?
Now ask the same question where the neurons are duplicated and each neuron is replaced by a pair of two running in parallel.
Now ask the same question where the parallel sets are running in physically separated brains....