“ Economy What happens when trucks, buses and taxis drive themselves? And they will. The vehicle could operate 24/7. And if we move to mostly... (read full comment) ” 

Posted on January 5, 2012 at 11:27 AM EST

“ Manned spaceflight At this point, it makes no more sense than manned warplanes. We should send people back to space only when our unmanned base... (read full comment) ” 

Posted on February 11, 2010 at 12:25 PM EST

“ Reproductive fitness declines As we begin to reengineer the human genome for longer lives, will we end up taking the longevity branch of the... (read full comment) ” 

Posted on December 31, 2009 at 11:51 PM EST

“ Darwin I expect multiple AIs. Those that value survival and propagation will survive and propagate, evolving in order to do so. The video... (read full comment) ” 

Posted on September 14, 2009 at 1:24 PM EDT