I'll try to answer as best I can. I have done cell culture in a research lab, specifically mammalian cells (human and mice), which is what's needed for meat. Typically, the cells get fed with nutrients, but also something called FBCS, fetal bovine calf serum. This is the blood of unborn cows, and it is required because of a mix of growth factors and hormones the cells also need (the article mentions this too). Now imagine doing this for growing meat, it does not make sense to me, since you'd need the calf serum to begin with. Maybe today the required factors have been defined, but would have to be made with biotechnology, prohibitively expensive (think insulin and cancer drugs). So just from this perspective, it sounds like a no-go. Mammalian cells have to be babied, unlike yeast (beer, bread) or bacteria (yoghurt). Yeast genome = 12 Megabases, Human genome = 3 Gigabases, vastly more complex and difficult to grow.
Pat Brown, the founder of Impossible foods, who was trained as an MD and clearly has the background to judge this is also pointing out the fundamental issue [0]. Anyone who says that he has a vested interest I can just tell that I have worked with Pat, and the first thing I was told about him was that "he's the real deal.". He really is.
Pat Brown, the founder of Impossible foods, who was trained as an MD and clearly has the background to judge this is also pointing out the fundamental issue [0]. Anyone who says that he has a vested interest I can just tell that I have worked with Pat, and the first thing I was told about him was that "he's the real deal.". He really is.
[0] https://www.eco-business.com/news/economics-of-cell-based-me...