The main difference between the thermoacoustic system and Stirling's original idea is that, instead of using thermal expansion of the workingfluid to push the piston, it uses powerful pulses of sound.
While Lillehei was cutting into Leslie's chest, an anesthesiologist working on Geraldine made a horrible mistake, allowing air instead of fluid into Geraldine's I.
Smart, agile organizations know how to work with such fluid business information to gain significant tactical strategic value by working with digitally eminent influencers.