And there were several sensory snacks for on-site experimenting: a piece of peach fruit leather, a bite-sized piece of artichoke (it makes water and saliva taste sweet for those who have a certain genetic tendency), and a paper-thin wafer that smacked of uber-bitterness to me, but was tasteless for a significant fraction of the audience. Aesthetics aside, taste really is in the mouth of the beholder, according to Bartoshuk. She put the entire quarter-sized wafer in her mouth at once. And kept it there. I couldn't even dab it on my tongue with out a severe wince, grimace, and quick scramble for anything to replace the taste.