A new lifetime model

A new lifetime model! That's exciting. Can you please provide more context or details about what you have in mind? Are you looking to create a new model for:

1. Predicting customer lifetime value (CLV)?
2. Modeling customer behavior or churn prediction?
3. Estimating the lifetime of a product or asset?
4. Something else entirely?

Additionally, what are your goals for this new model? Are you looking to:

1. Improve accuracy over existing models?
2. Handle new types of data or features?
3. Scale to larger datasets or more complex systems?
4. Integrate with existing models or systems?

The more information you can provide, the better I'll be able to assist you in developing a new lifetime model that meets your needs.