I disagree with the article's premise. Lab grown meat that is exactly like animal meat may be impossible, but this industry may discover some lab grown protein that tastes good and is more healthy for us, which is also more efficient to manufacture. There's nothing in the laws of physics that prevents such a product from being created. Seems very arrogant to suppose that just because you know the state of current technology that you can know what it is ten years from now, much less 20 years from now.