Common sense reasoning is one of the hardest parts of AI. I don't think top-down solutions will work. Look to a project like Cyc for one of the best efforts, an

Common sense reasoning is one of the hardest parts of AI. I don't think top-down solutions will work. Look to a project like Cyc for one of the best efforts, and most wasted money http://www.cyc.com/ http://www.cyc.com/ You can't build a top down taxonomy of ideas and expect everything too work. You can't just "hard code" the ideas. I think building tools from the ground up, with increasingly complicated and capable recognition and modeling, might work. For example, a visual object class recognition suite that first learned faces, phones, cars, etc. and eventually moved on to be able to recognize everything in a scene, might be able to automatically perhaps with some training build up the taxonomy for common sense.