
Research on the topic.

The development of AI technology enabling a deceased person to communicate with individuals attending her funeral marks a novel and ethically intricate frontier. While the idea may elicit both fascination and apprehension, it prompts a profound reflection on the intersection of technology, mortality, and human connection.
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The arrival of technology that allows us to "speak" to our deceased relatives signals a moment of profound reflection on the evolving relationship between technology and the human experience. As we stand at the intersection of innovation and emotion, the question arises: are we ready for this unprecedented leap into the realm of posthumous communication?
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https://www.technologyreview.com/2022/10/18/1061320/digital-clones-of-dead-people/

The concept of Microsoft exploring a patent to create chatbots to simulate conversations with deceased loved ones raises intriguing questions about the intersection of technology and emotions. While the idea may be fueled by a desire to offer comfort and a semblance of connection, it also brings forth ethical considerations and the need for careful reflection.
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https://www.independent.co.uk/tech/microsoft-chatbot-patent-dead-b1789979.html

The emergence of an AI service that allows individuals to communicate with their deceased loved ones presents a scenario reminiscent of the thought-provoking narratives found in the television series Black Mirror. This technological feat marks a significant leap into uncharted territory, challenging our perceptions of life, death, and the role of technology in bridging the gap between them.
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https://interestingengineering.com/innovation/ai-service-lets-you-converse-with-dead
Videos relate to the articles.

AI lets deceased woman address her funeral | Artificial Intelligence tool helps the dead talk | WION
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Videos about AI photo and voice generate.

The video demonstrates how to use the HeyGen 2.0 to generate the instant Avatar by AI. The websites requires 2 minutes video of human for the AI to clone and mimic the voice and body language. The avatar can generate the text and creat a video that speak humanly and have a very natural body language which looks like the prototype video that was sent to the website in the first place.
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The video demonstrates how to use different websites to create the photo avatar, which the photo can speak but not very much humanly.
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