Lance, As Sean said, there is definitely a performance and API-intelligibility motivated difference between From-things and To-things, but you are right that there is a conceptual symmetry between the two objects just as there is symmetry or duality between the rows and columns of a matrix.
On Mon, Aug 30, 2010 at 11:53 PM, Lance Norskog <[email protected]> wrote: > It seems like Users and Items are isomorphic concepts. (Or rather > enantiomorphs?) Yes, there are different strategies for user-user v.s. > item-item, but the core abstractions seem the same. > > If so, there's a lot of duplicated code in Taste. > > -- > Lance Norskog > [email protected] >
