What can be the effect on a fictional world if time travel is done only through an AI system?

Let's face it, time travel is one of the most popular and debated topic in the world of Science Fiction. There are millions of stories about time travel and the consequences that follow. However, what I am trying to build is a world that is based on Time Travel, but through an AI. <br><br>- **How Time Travel works in my world:**<br> - In my world, time travel is not possible for humans. The only way to project a human's consciousness in the past is through an AI system. <br> - The AI is known as the "Overseer" in my world. The Overseer is a massive server that has been built by humans to assist them in projecting their consciousness in the past.<br> - The AI is capable of controlling everything once it has projected a human's consciousness inside a host's body that is in the past.<br> - The AI can see the world through the human's eyes and can communicate with him through his ears. Technically, the AI is the one who is seeing and hearing everything that is happening in the past. The human is just a passenger in the host's body.<br> - The AI can also talk through the human's mouth whenever it feels that it is required. The human has no knowledge of what the AI is saying because it is not connected to his brain. It is only connected to his eyes and ears.<br> - The AI is not doing all these things without any rules. There are rigid rules that the AI has to follow once a human's consciousness is projected in the past. These rules are built for the safety of the timeline. Any violation of these rules can lead to serious consequences.<br> - Any human who wants to travel in time has to go through multiple tests to make sure that he is eligible to travel in time. Any human who fails these tests is not eligible to travel in time.<br><br>- **What are the potential consequences?**<br> - **Dependence on AI:** In this world, time travel completely depends on AI, so any malfunction in AI can lead to serious consequences. If the AI fails to project the consciousness of a human back to his original time, it can cause the death of the human. Further, the ability of the AI to talk on behalf of the human can lead to unwanted consequences. This can happen when the human may not be able to communicate with anyone in the past. <br> - **Ethics:** The ability of the AI to communicate on behalf of the human can raise serious ethical questions. The AI is talking on behalf of the human without the knowledge of that human. What if the AI says something that is against the morals of the human? What if the AI kills someone on behalf of the human?<br> - **Rules:** The AI follows strict rules to ensure that the timeline is not disturbed. Yet, despite having these rules, the AI is talking and hearing on behalf of the human. What if the human commits a crime that can disturb the timeline, and the AI fails to stop him? <br> - **Exploitation:** Everyone knows that Time is a powerful resource. People can exploit this resource using the AI. They can change the course of history for their benefit. They can indulge in crimes like murder, rape, etc. They can also change the course of the world using the AI. They can use the AI to kill anyone who is disturbing them.<br><br>This is it. Any suggestions will be highly appreciated.