Do you believe that there is life on Mars?

I suppose my answer is based on the fairly simplistic premise that if I have no available evidence to incline me to believe there IS life on Mars, then the hard-wiring that manages my thinking forces me into the belief that there is no life on Mars. However, I do remain always at the ready to shift my belief regarding life on Mars (as I am with pretty much everything) by varying degrees, right up to and including 100% certainty -- to the point of becoming & being yet another incarnation of Eric Hoffer's "True Believer", with all the rights, privileges, and self-righteous indignation thereunto appertaining.