.THE app of Bayesian contradiction to a variety of lithologic criteria in an evaluation of seismic information rarely seems to be right stuff of headlines. However when the seismic data you are actually analyzing originated from Mars, as well as when your reasoning proposes that the most effective explanation for all of them is fluid water in the pores in between stones, you have a tale. There is actually dwarfs crave more, when it concerns worldly science, than water on Mars. Why does the prospect prompt such enjoyment-- and also what does this new investigation add to the tale?