  The emergence of parton model from field theory in the context of light-front
current algebra and naive canonical manipulations is reviewed. Shortcomings of
the naive canonical picture, especially concerning renormalization issues are
discussed. To illustrate the novel aspects of the renormalization problem in
light-front dynamics, the scaling behavior of different components of currents
under the dual power counting is stressed. It is noted that the application of
dual power counting to deep inelastic phenomena may provide a simple intuitive
understanding of twist. Talk Presented at the Fourth International Workshop on
Light Cone Quantization and Non-Perturbative Dynamics, Polana Zgorzelisko,
Poland.
