If Gates has his way we’re going beyond eggs and meat, using new substitutes that taste the same but that we can make in a lab instead of a farm, so we can feed the entire planet. And then we’re also going to make salt healthy while we’re at it.

To keep a growing world population filled with nutrients, startups like Beyond Eggs are finding new ways of making protein that don’t involve the resource intensity of raising animals. Here comes the Protein Economy.

In his annual letter, the billionaire looks to the year ahead in his quest to end disease and poverty in the developing world, as the Millennium Development Goals loom.