The burgeoning field of electric vertical takeoff and landing (eVTOL) aircraft has set off a wave of innovation within urban air mobility. However, not all is smooth flying in this high-stakes industry, as demonstrated by the recent financial troubles of one of its pioneers, Volocopter. Let's examine the causes and implications of Volocopter's financial predicament, providing a snapshot of the challenges startups face in cutting-edge technology sectors.