Lab grown meat is a useful contribution to feeding the world, but I just think it's totally unnecessary, and the risk in it is that it probably wouldn't be possible to upscale it without giving away even more power to giant corporations such as Monsanto. I've actually nothing against the bio-ethics of growing meat in labs, and I trust that science can do it safely, it's just given away power to those Corporate bastards is a problem - they'd end up owning cow DNA and then yr small scale farmers in Africa would have to pay them for every new calf their heard produces.

If people must eat meat, then I think integrated, localised polycultures are the way forwards, which can include animals - I recommend checking out https://permies.com/ for all sorts of extremely viable and well researched integrated food systems.

Obvious examples include keeping a couple of cows and chickens which provide milk and eggs, and manure, and meat! Living alongside your veggies.

However, this wouldn't sort out the meat in the mega-city problem and in general I think the world will probably also have to eat a whole lot less meat if it also wants land for forests.

At the risk of sounding smug, if everyone just went vegan none of this would even be an issue, mind you the chances of that happening are about as small as a Corproate free lab-meat future.

Then there's always the Soylent Green Solution? Look it up if you've no idea what I'm talking about!

Very nice well-thought out post, about the right length, and from a teacher's perspective very educational!