The paper presents a method to simulate massless chiral fermions in \(2n\) dimensions using a lattice theory of massive interacting fermions in \(2n+1\) dimensions. The key idea is to introduce a step function mass term in the extra dimension, which creates massless zeromodes bound to the domain wall defect. These zeromodes correspond to massless chiral states in the \(2n\) dimensional subspace, while the doublers, which are unwanted extra modes, can be removed using a gauge-invariant Wilson term. The anomalies in the \(2n\) dimensional theory are realized through finite Feynman diagrams, and the Goldstone-Wilczek current accounts for the anomalous divergence of the zeromode gauge current. The author discusses the challenges and potential of this approach in simulating strongly coupled chiral gauge theories and the standard model, emphasizing the importance of anomaly-free chiral gauge currents for describing proton decay.The paper presents a method to simulate massless chiral fermions in \(2n\) dimensions using a lattice theory of massive interacting fermions in \(2n+1\) dimensions. The key idea is to introduce a step function mass term in the extra dimension, which creates massless zeromodes bound to the domain wall defect. These zeromodes correspond to massless chiral states in the \(2n\) dimensional subspace, while the doublers, which are unwanted extra modes, can be removed using a gauge-invariant Wilson term. The anomalies in the \(2n\) dimensional theory are realized through finite Feynman diagrams, and the Goldstone-Wilczek current accounts for the anomalous divergence of the zeromode gauge current. The author discusses the challenges and potential of this approach in simulating strongly coupled chiral gauge theories and the standard model, emphasizing the importance of anomaly-free chiral gauge currents for describing proton decay.