Abstract: Recent experimental measurements of the transition path time distributions of proteins moving from the folded to the unfolded state and vice versa, presented the theory with challenges. Analysis of the results suggested barrier heights that are much lower than the free energies of activation of the observed transitions, what are these barrier heights? Secondly, beyond the mere feat of following a protein as it folds or unfolds, is there anything really useful that we can actually learn from such experiments? These questions lead to a few insights.