The breakthrough in this context is the utilization of a square waveform of AC, termed rapid alternating polarity (rAP), into synthetic electrochemistry (Figure , right). rAP can be readily created by alternating the polarity of an electrode in the millisecond timescale while maintaining either the current or potential constant. The underlying software to access such a waveform was recently implemented as a free software update in ElectraSyn2.0, a widely employed commercial potentiostat, to facilitate widespread use of this method without any engineering barrier (no oscilloscopes or signal generator required). Over the past several years of research, it has become evident that such a waveform indeed induces unique reactivities and selectivities in organic electrochemical reactions that are otherwise difficult or impossible to achieve by conventional DC electrolysis. Most importantly, this reactivity can simplify the practice of organic synthesis, reducing step counts and enabling access to molecules that would be otherwise challenging to access.