- Dominic Monaghan: So, when we die, there's between 8 and 12 minutes of brain activity when your heart stops. So, Timothy Leary had said that he was excited to see what that is when you die, because when you dream, there's only something like a minute and a half to two minutes of brain activity, so 12 minutes could feel like this endless dream. So, I'm hoping that I'll die and then I'll just dream for infinity.