Add 2 cups water (the temperature doesn't really matter as long as it is not too hot) and 1/4 teaspoon yeast to a large bowl.
Stir in 1 1/2 cups bread flour, 1 1/2 cups whole wheat flour, 2 cups chopped green olives and 2 teaspoons salt. I use my hand to make sure everything is evenly moist but you can use a wood spoon. There's no kneading just simply stir together until combined. It will be sticky and soft like thick cake batter. Resist the temptation to add more flour, the wetness is the secret to this bread.
Cover with plastic wrap and leave at room temperature anywhere from 8 to 18 hours. I think the ideal time is 12 hours but this will depend on how hot or cold your kitchen is. You don't want to overproof (let it sit too long) because then it will start to deflate and loose air pockets.
The dough is ready when it has become an airy mass and its surface is dotted with bubbles. It should double in size.
Generously flour a work surface and remove the plastic wrap. Flip the bowl upside down so the dough is on top of the flour. Give the dough 15 minutes to release itself from the bowl.
Using enough flour to keep the dough from sticking to your hands, gently form into a ball. I use a dough scraper in the beginning to scrape the sticky dough from the counter.
Dust a clean towel generously with flour and place dough on towel. Wrap the edges of the towel around the dough to cover. Let rise 1 hour.
After an hour has passed, heat oven to 425°F and place a 6 to 8 quart Dutch oven with tight-fitting lid on the middle rack of the oven as it heats. Let the pot heat for 1 hour.
After the pot has heated for an hour, carefully remove it from the oven and lift off the lid. Unwrap the dough, slide your hand under the towel and turn the dough over into the pot. It's okay if the dough looses its shape it will even out as it bakes. If the dough is sticking to the towel use the bench scraper to scrape it off.
Cover and bake for 30 minutes. Remove lid and bake for 8 to 10 minutes more, or until browned. Remove bread from the pot and let cool on a rack at least an hour before slicing.