The Singleton Super Intelligence

Super intelligence might become real before there's competitors. How long will it take to go from something less than human to something radically super intelligent? Another variable is how long is the typical gap between different products that are striving to develop the same technology. If we have a fast take off scenario in which you go from below human to radically super human levels of intelligence in a very short period of time, like days or weeks, then it's likely that there will only be one product that has radical intelligence at first.