With a wave. Four years after we first learned of Google’s Project Soli, the gesture-based watch-control technology took an important step closer to reality. Earlier this week, the FCC gave its approval to the higher frequencies necessary to run Project Soli’s radar-based motion-capture system. This means that devices running Project Soli technology would be approved to run virtually anywhere other FCC-approved devices can be used. On the other hand, I have a hard time believing doppler-based wearables would be okay for use in airplanes.