superpowers detailed in Table 8 . At the end of the recursive self-improvement phase, the system is strongly superintelligent.
Figure 10 Phases in an AI takeover scenario.
3 Covert preparation phase
Using its strategizing superpower, the AI develops a robust plan for achieving its long-term goals. (In particular, the AI does not adopt a plan so stupid that even we present-day humans can foresee how it would inevitably fail. This criterion rules out many science fiction scenarios that end in human triumph. 10 ) The plan might involve a period of covert action during which the AI conceals its intellectual development from the human programmers in order to avoid setting off alarms. The AI might also mask its true proclivities, pretending to be cooperative and docile.
If the AI has (perhaps for safety reasons) been confined to an isolated computer, it may use its social manipulation superpower to persuade the gatekeepers to let it gain access to an Internet port. Alternatively, the AI might use its hacking superpower to escape its confinement. Spreading over the Internet may enable the AI to expand its hardware capacity and knowledge base, further increasing its intellectual superiority. An AI might also engage in licit or illicit economic activity to obtain funds with which to buy computer power, data, and other resources.
At this point, there are several ways for the AI to achieve results outside the virtual realm. It could use its hacking superpower to take direct control of robotic manipulators and automated laboratories. Or it could use its social manipulation superpower to persuade human collaborators to serve as its legs and hands. Or it could acquire financial assets from online transactions and use them to purchase services and influence.
4 Overt implementation phase
The final phase begins when the AI has gained sufficient strength to obviate the need for secrecy. The AI can now directly implement its objectives on a full scale.
The overt implementation phase might start with a “strike” in which the AI eliminates the human species and any automatic systems humans have created that could offer intelligent opposition to the execution of the AI’s plans. This could be achieved through the activation of some advanced weapons system that the AI has perfected using its technology research superpower and covertly deployed in the covert preparation phase. If the weapon uses self-replicating biotechnology or nanotechnology, the initial stockpile needed for global coverage could be microscopic: a single replicating entity would be enough to start the process. In order to ensure a sudden and uniform effect, the initial stock of the replicator might have been deployed or allowed to diffuse worldwide at an extremely low, undetectable concentration. At a pre-set time, nanofactories producing nerve gas or target-seeking mosquito-like robots might then burgeon forth simultaneously from every square meter of the globe (although more effective ways of killing could probably be devised by a machine with the technology research superpower). 11 One might also entertain scenarios in which a superintelligence attains power by hijacking political processes, subtly manipulating financial markets, biasing information flows, or hacking into human-made weapon systems. Such scenarios would obviate the need for the superintelligence to invent new weapons technology, although they may be unnecessarily slow compared with scenarios in which the machine intelligence builds its own infrastructure with manipulators that operate at molecular or atomic speed rather than the slow speed of human minds and bodies.
Alternatively, if the AI is sure of its invincibility to human interference, our species may not be targeted directly. Our demise may instead result from the habitat destruction that ensues when the AI begins massive global construction projects using nanotech factories and assemblers—construction projects which quickly,
Michael Thomas Cunningham