The patent describes creating a bot based on the “images, voice data, social media posts, electronic messages”, and more personal information.
“The specific person [who the chat bot represents] may correspond to a past or present entity (or a version thereof), such as a friend, a relative, an acquaintance, a celebrity, a fictional character, a historical figure, a random entity etc”, it goes on to say.
“The specific person may also correspond to oneself (e.g., the user creating/training the chat bot,” Microsoft also describes – implying that living users could train a digital replacement in the event of their death.