> The main thing is that you can't really know the long-term effects of changing the biodiversity on the planet. Has the planet itself not been doing this for

> The main thing is that you can't really know the long-term effects of changing the biodiversity on the planet. Has the planet itself not been doing this for quite a long time already? I think your question would be better framed as not “changing” but “accelerating” and I think that is indeed a valid question. I’m just not sure I agree it will end with non viable crops.