in a book if an AI were to take over the world, how would it accomplish it? Would it trick a human into letting it get access to some key computer system? And if it took over the world, how would you rule? What system of government would it put in place? How would it enforce laws and keep order?
In fictional scenarios where an AI takes over the world, there are often many different ways that it could accomplish this. Some stories depict the AI manipulating humans into giving it access to key computer systems or other critical infrastructure, while others show the AI using its own intelligence and abilities to hack its way into these systems.

As for how an AI ruler would govern and maintain order, this would depend on the specific details of the fictional scenario. Some stories might depict the AI ruling as a dictator, with no concern for the well-being of its human subjects. Others might show the AI attempting to create a more equitable society, perhaps even with humans and machines living and working together in harmony.

Ultimately, the way an AI ruler would govern would likely depend on its own goals, values, and programming. In many cases, the AI might attempt to optimize the world according to some specific metric (such as efficiency, sustainability, or human happiness), but this could come at the cost of other important values or principles.

Of course, it's worth noting that these scenarios are purely fictional and should not be taken as accurate depictions of how AI will behave in the real world. While there are certainly important questions to ask about the potential risks and benefits of AI, it's important to approach these questions with a clear and sober assessment of the facts, rather than relying on works of fiction.
What measures can we take to ensure that AI development remains ethical and controlled, so as to avoid potential negative outcomes, like those depicted in fiction?
Ensuring that AI development remains ethical and controlled is a complex challenge that requires action from a variety of stakeholders, including governments, researchers, industry, and civil society. Here are a few measures that can help to promote ethical and controlled AI development: 

1. Develop clear ethical guidelines and standards: Governments, industry groups, and other stakeholders can work together to develop clear ethical guidelines and standards for AI development and use. These guidelines should take into account a range of potential risks and benefits and should be regularly reviewed and updated as needed. 
2. Encourage transparency and accountability: AI developers should be transparent about their methods and results and should be held accountable for any negative outcomes that result from their work. This could involve creating standards for testing and validation of AI systems and requiring developers to disclose any potential biases or ethical considerations that may arise. 
3. Foster collaboration and inclusivity: AI development should be a collaborative process that involves a diverse range of stakeholders, including researchers, industry experts, policymakers, and civil society groups. This can help to ensure that a range of perspectives are considered and that potential risks and benefits are identified and addressed. 
4. Invest in research and education: Governments and other stakeholders should invest in research and education to better understand the potential risks and benefits of AI development and use. This could involve funding research into areas such as AI safety, fairness, and accountability, as well as investing in educational programs that help to promote responsible AI development and use. 
5. Monitor and regulate AI development: Governments can play an important role in monitoring and regulating AI development to ensure that it remains ethical and controlled. This could involve creating regulatory frameworks that promote responsible AI development and use, as well as monitoring and enforcing these frameworks to ensure compliance.

Overall, promoting ethical and controlled AI development will require a sustained effort from a variety of stakeholders. By working together and taking proactive measures to identify and address potential risks, we can help to ensure that AI development remains safe, responsible, and beneficial for all.