What sense modalities would you least want to lose? Why? If you could design a new sense modality, what kind of information would it detect? What advantages would this new ability provide? Or do you...

What sense modalities would you least want to lose? Why? If you could design a new sense modality, what kind of information would it detect? What advantages would this new ability provide? Or do you think that our sensory organs already detect all of the useful information that is available? Why or why not?