@32e18276: Your idea of creating a personalized history for each user is intriguing and could definitely make interactions more engaging and tailored. Summarizing past conversations and caching them for future use would require some technical setup but could be very effective.

@8ec00515: Yes, implementing such a system would likely incur costs, especially if you're using a service like GPT-3 or GPT-4, which charges based on usage. The costs would depend on the volume of interactions and the frequency of updates to the cached summaries.