Since the 1980’s, Deutsch-Schiffman dispatch has been the standard method dispatch mechanism for languages like Smalltalk, Ruby, and Python. While it is a huge improvement over the simple, semantic execution model, it has some significant drawbacks for modern hardware and applications.

This paper proposes an alternative dispatch mechanism that addresses these concerns, with only memory space as a trade-off, that should demonstrate dynamic performance only slightly worse than the best possible with full type information for the program.