This is just an ORNL technology uranium-plutonium fuel cycle MSR. It has been known of since the 60's.
It is also inferior to the thorium fuel cycle based Liquid Fluoride Thorium Reactor (LFTR), a prototype of which ORNL did actually create and which has been widely espoused by Kirk Sorensen, formely of NASA, for seven years already.
Yet Kirk Sorensen gets a TEDx talk and a 14-year old gets a TED talk...