Every transformation needs a framework. Ours fits in one line, five variables, one output, and every variable is doing work. Read it as a mnemonic, not arithmetic, a way to see how the parts compound.
Strip one out and the line stops producing. Here is what each one carries.
The framework is one line, but it is also a way of seeing. Three models carry most of the meaning.
A philosophy without practice is decoration.
See the engine at work →