So once again, a lot of this Columbian exchange is less of an exchange and more of like the new world's got some cool stuff that you might want. Now if I had to pick two or three crops or food items that are going to have the biggest impact on the old world coming out of the new world, I'd have to go with potatoes. Potatoes which were grown in South America are going to quite quickly in a couple of centuries change the face of the old world. Not only is it going to become a main staple in Africa and in China, but you've all heard of the potato famine in Ireland. They were so dependent on the potato that it shows you how much of an impact that it had. These food items are going to allow the European populations, the Asian populations to rapidly grow. They were hungry and now they have, you know, a potato, a starch item that is just awesome in terms of sustainability.