So in summary, it is my view that there’s plenty of room for increasing agricultural productivity: we CAN feed 10 billion people.  But, will we? CLICK!!!!! Progress on slowing climate change and improving water management is glacial. CLICK! Governments have been underinvesting in agricultural research for decades: half of us live in cities now and know only that food comes to the store in trucks.  CLICK! We continue to overregulate – or even completely prevent – the use of the most modern methods of crop improvement.  Only the big commodity crops can support – and only the big biotech companies – can afford to bring a GM crop to market – it costs on the order of $35 million per crop just to comply with regulatory requirements. CLICK! And last, but not least, private investment in primary agriculture is not popular, so its very hard to round up the capital needed to bring high tech agriculture to the less developed world, where land is still plentiful and yields are low.  Now, none of these are scientific or technical problems, they’re policy, regulatory, financial and social problems.  Will be solve them? I don’t know.