The idea that humans will move into a virtual world seems more far out than the idea that intelligent agents will move into ours. As agents are becoming ever more intelligent it seems inevitable that they will soon (maybe 40 years?) surpass us humans. What will be the consequences? Will humans allow this to happen? Robot technology will most likely be able to provide suitable physical bodies to these agents aswell. So what is to stop them from replacing us humans? I guess these agents will be programmed to act nicely upon humans, but to what extent can you program a living entity? It might therefor come to the conclusion that humans are of no importance to its survival. And any intelligent agent will want to survive.. One of my theories follows: Since agents can theoretically live forever it will have a completely different view on the importance of keeping earth inhabitable. Humans are destroying earth at an alarming rate (energy crisis, global warming etc). The agent will see this as a direct threat to its own survival and must therefor stop us humans. It seems almost natural that life on earth will continue to evolve and give rise to more intelligent beings. These beings can become almost godlike. They are not limited physically or mentally. If one considers the possibility of quantum computers these beings could become billions and billions of times more intelligent than us. A scary but also beautiful thought. So what do you guys think about this threat?