Faithfully simulating the human brain requires much more processing power than presently available, so potentially yes. That said, we don't know how much of thi

Faithfully simulating the human brain requires much more processing power than presently available, so potentially yes. That said, we don't know how much of this complexity is actually vital to the functioning of intelligence and consciousness. Similarly, it would take a huge amount of processing to simulate a CPU at the electronic level, but our functional understanding allows us to build emulators at a high level of abstraction. The brain may be an immensely powerful computer running a simple program.