Jim Fulton wrote:
> Well said. A feature I'd like to add is the ability to have persistent  
> objects that don't get their own database records, so that you can get  
> the benefit of having them track their changes without incuring the  
> expense of a separate database object.


Hanno Schlichting recently posted a nice graph showing the persistent 
structure of a Plone Page object and it's 9 (!) sub-objects. 

A sub-persitent type would allow us to fix the latency problems we 
experience without needing to re-engineer Archetypes at the same time.


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