We've got excellent mechanisms for improving the efficiency of plants through engineering and breeding that doesn't involve a for-profit company controlling IP and maximizing short term returns (the way that YC works). There is an academic community supported by governments and NGOs that works, even if agribusiness siphons off some of the expertise. I am happy that software companies can be created and destroyed quickly if venture companies want to support them. A 5-7 year return on capital doesn't really work for the carbon budget or agricultural heritage of the planet.