On one hand, I think the world is already somewhat close to a singleton (with regard to AI, obviously it is nowhere near singleton with regard to most other things). I mean google has a huge fraction of the AI talent. The US government has a huge fraction of the mathematics talent. Then, there is Microsoft, FB, Baidu, and a few other big tech companies. But every time an independent AI company gains some traction it seems to be bought out by the big guys. I think this is a good thing as I believe the big guys will act in there own best interest including their interest in preserving their own life (i.e., not ending the world). Of course if it is easy to make an AGI, then there is no hope anyway. But, if it requires companies of Google scale, then there is hope they will choose to avoid it.