To make films is as boring as watching paint dry - you usually have to do little tiny bits here and there. You go off waiting for lighting, you come back - the energy dies. You hope you can find someone who can keep it going.
How can you defy fear? Fear is a human instinct, just like hunger. Whether you like it or not, you become hungry. Similarly with fear. But I have learned to train myself to live with this fear.
In 20 or 30 years, you'll be able to hold in your hand as much computing knowledge as exists now in the whole city, or even the whole world.