My hypothesis has been that the saying is due to how we generally think about power supplies. The voltage is a fixed quantity but the current fluctuates based o

My hypothesis has been that the saying is due to how we generally think about power supplies. The voltage is a fixed quantity but the current fluctuates based on what the circuit asks for and what the power supply can give you. Something could be rated at 100V, but if the supply can’t deliver any significant amps it doesn’t matter much