One of Bill Gates’ most recent promotions is his prescriptions of synthetic foods for developed countries as a means to combat climate change. In a recent interview with MIT Technology Review, Gates says he thinks “all rich countries should move to 100% synthetic beef.”

Fake food replaces animal products with highly processed food grown in labs, like fake meat, fake dairy products or fake eggs. It is made possible by technical innovations such as synthetic biology, which involves reconfiguring the DNA of an organism to create something entirely new.

For instance, plant-based meat companies like Beyond Meat and Impossible Foods use a DNA coding sequence from soybeans or peas to create a product that looks and tastes like real meat. Some companies are also investing in cell-based meat, grown from real animal cells, but it has yet to reach the market. 

Learn more: Bill Gates: Let Them Eat Fake Meat!