You're right that lab-grown meat needs glucose and nutrients, but that's not the gotcha it seems. Cows need way more feed than a bioreactor does to make the same protein. We're already growing that feed, plowing land, and shipping it around. Growing just the meat cuts out the animal's entire digestive system, which is the most wasteful part. So even with refined inputs, you're still using less agriculture, not more. The infrastructure shift is big, sure, but so was switching from horses to cars. Viability isn't about being easy today, it's about being possible tomorrow.