Kasper Kubica is a Duke University physics grad and entrepreneur who's currently the founder and COO of Carpe - a company devoted to making extremely effective sweat-stopping products for all over the body, which has grown to nationwide distribution in Walmart, Target, and CVS.  While his professional focus is sweat, Kasper's personal interest has always been in aerospace - he's a pilot and skydiver, and was briefly involved in an astrophysics research group at Duke before Carpe took off.  Kasper's passion lies with artificial gravity space stations, which he believes Starship's cost-to-orbit will enable within the decade.