My question is this: does this consider the situation where beef is raised on marginal lands, as is done in most of the US? I have no doubt that raising beef on former rainforest land is ludicrously stupid. But in the US, the land we raise beef on is useful for almost nothing else, and cattle mostly eat grass anyway. Here, cattle are basically free grass conversion engines that we wouldn't have in the first place. They being there improves the land, too. Not as much as buffalo would, but... Aside: Yes, all cattle are grass-fed. It's how they're finished that matter. Anyway, what I want to know is how this looks SPECIFICALLY in the US? I'm pretty sure our food system has efficiencies that places like Brazil simply do not. Given all that, I imagine our best bet would be to localize beef slaughter and make butchery a local craft again. The real environmental inpact from US beef is probably all that transportation to and fro. And methane burps, of course. but that's addressable via feed additives.

I suspect he may be wary of forking off another operating system, which is after all, a large move with consequences to the user community. Definately not something I would undertake lightly...