I was just chatting with ChatGPT about unlimited context length, and even if you theoretically could archive to have a personal assistant this way, one which would know all your chat history, an unlimited context length doesn't seem efficient enough.
It would make more sense to create a new context every day and integrate it into the model at night. Or a every day a new context of the aggregated last several days. Giving it time to sleep on it every day and it being capable to use it the next day without it needing to get passed in the context again.