If website personas are today, what can we reasonably expect for tomorrow? Surprisingly, more people are interested in the glamorous distant future than in the practical improvements we can make tomorrow. Yet, long before we learn how to upload the mind or consciousness to a computer (or download that mind into a tabula rasa clone), long before we learn how to create a true artificial person, we will have learned how to simulate a self, i.e., the artificial imitation of a specific person. Clearly, this nontrivial but manifestly plausible achievement should be called a Turing-class Persona.
There are many useful functions for Turing-class Personas. They could be used to represent an individual online, e.g., to generate email responses indistinguishable from a real person. This gives a clue for a simple way to construct a Turing-class Persona: create a number of special-purpose simulations, e.g., an email responder, and assemble them into a seemingly integrated persona. Once this level of simulation is achieved, it becomes apparent that Turing-class Personas would be more than adequate as representations of long-deceased historical persons.