Dr. Craig Hunter is an aerospace engineer at NASA Langley Research Center in Hampton, Virginia with research experience in experimental, theoretical, and computational fluid mechanics, aerodynamics, and aeroacoustics.  He has developed technology-enabling software tools and analysis methods for computational fluid dynamics (CFD) simulation, aerodynamic design, and jet noise prediction. In 2008, Craig founded Hunter Research and Technology to create innovative and compelling apps for the fledgling Apple iPhone, namely Theodolite, Pro Compass and Nav Camera. Craig is an expert pressing high-end Macs into service for scientific computations. We chatted about his Ph.D work, work at NASA in CFD and jet engine noise simulations, his recent computational review of a US$31,000 2019 Mac Pro, and his iOS app side-business and how that market has changed over the years. Heady stuff.