 Nevertheless, such materials are new, quite difficult to find, and are electrostrictive, not piezoelectric.In 2013, the Space Studies Institute announced the Exotic Propulsion Initiative, a new project privately funded that aims to replicate Woodward's experiments and then, if proven successful, fully develop exotic propulsion.Gary Hudson, president and CEO of SSI, presented the program at the 2014 NASA Institute for Advanced Concepts Symposium, and a NIAC phase I grant was awarded in April 2017 to develop a better theoretical model and technical solutions for greater efficiency as a TRL-1 technology