I am sure some of you have heard of Ray Kurzweil and all of his "singularity" predictions. He describes a borg collective, only worse. He wants to convert all matter in the universe to a computing machine and he calls his fictional computing material "computronium". i doubt that ai will ever reach human level intelligence. Sentience is still not close to being understood and neuroscientists say that the brain is a result of nonlinear interactions among billions of cells. I have to agree that the brain is like the stock market, nonlinear, unpredictable and ultimately non-computable. Kurzweil's original prediction was that we would have human ai by 2013, but then he bumped it out to 2029 when that did not come true. He compares his "law of accelerating returns" to the laws of thermodynamics and claims that they "are just laws of a finer level" even though the laws of thermodynamics proves that it is impossible to create "computronium". I do not believe that kurzweil's singularity will ever happen.