If you look at the carrying capacity of agricultural areas throughout the world, their ecological habitats are changing. So I think we're looking at - in our lifetime - great collapses of food services.

Conventional agriculture has never succeeded in feeding the world, and it's never produced anything good to eat. For the future, we need to look toward alternatives.

It takes fifteen pounds of wild fish to get you one pound of farm tuna. Not very sustainable. It doesn't taste very good either.

I said, 'Don, what's sustainable about feeding chicken to fish?'

At the end of the day, yes. It's all about the marbling and maybe a few other things along the way. But intramuscular fat, that's where you get a lot of flavor. Fat carries the flavor but in the last 50 years it's been bred out of pigs. When American chicken exploded in the 70's and became such a huge commodity, it took away pork sales. The pork industry suffered and had to change.

The greatest lesson came with the realization that good food cannot be reduced to single ingredients. It requires a web of relationships to support it.

If you look at the carrying capacity of agricultural areas throughout the world, their ecological habitats are changing. So I think we're looking at - in our lifetime - great collapses of food services.