In Baldurs Gate 1 the higher the difficulty the harder the monsters and the more experience you got. In Baldurs Gate 2 you get the same amount of experience whatever difficulty it's set on. It just makes it harder.
As Entreri said there are differen't levels of traps (some are harder to disarm than other). The better the trap the more experience you get for dissarming it. It's the same with locked things as well.
No one lacks strength,
They lack will.
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