One potential limitation of the stochastic DAG traversal approach is the assumption of independence between the random variables representing gate delays in the DAG. In reality, the delays of interconnected gates may exhibit correlations that are not captured by this approach, leading to inaccuracies in the estimation of the critical path delay distribution. Additionally, the complexity of the DAG traversal algorithm may increase significantly with the size and complexity of the circuit, potentially impacting the scalability and efficiency of the delay estimation process. Furthermore, the accuracy of the delay estimation heavily relies on the quality of the gate delay models and the statistical information used to annotate the DAG, which may introduce uncertainties and errors in the estimation process.