Rex Briggs, Founder & CEO of Âé¶¹´«Ã½Ó³», talks about how the ROI Brain® calculates more combinations of media plans than all the grains of sand on all the beaches of the world. If every grain of sand is a unique media plan, the number of possibilities are endless, which is why only an algorithm like Âé¶¹´«Ã½Ó³»'s help can optimize.