.THE app of Bayesian contradiction to a range of lithologic guidelines in an analysis of seismic records rarely seems right stuff of titles. Yet when the seismic data you are actually analyzing stemmed from Mars, as well as when your thinking recommends that the greatest explanation for all of them is fluid water in the pores in between rocks, you possess a story. There is little people thirst for a lot more, when it relates to worldly scientific research, than water on Mars. Why carries out the possibility prompt such enjoyment-- and also what does this new investigation add to the story?