I am Jack's total lack of unlayered design

A nebulous idea grows within me partly from GUTSE's insight that all programming is mere translation from one  language to another: All Von-Neumann machines are merely SSI (Sequence, Selection, Iteration) executors that essentially facilitate these translations. Why not enshrine these facts directly, then? The design of Jack, therefore, stands refined to:

• A simple SSI executor at the base with no idea of what data is beyond the generic map that it reads in as input.
• A data layer (built using the SSI + its environment) that actually does know about the bits of data stored in the map. This layer essentially provides the box/unbox, serialize/deserialize, parse/print dual functions as required
• The data transformation layer (built using the layers below) that enable and reason out the transformations declaratively so that they can be composed, collapsed etc.