This video has the same problem that I have with nearly every "introductory" electoronics explanation that covers capacitors - how are they used?
Great, I can charge it. But either 1) it has to discharge in bursts, or 2) my input power is stronger than the rate that I'm discharging the capacitor. So what good is it? When would I use it?
Someone who doesn't really understand electronics well can sort of understand how a diode is used, or how a resistor is used, how electricity flows conceptually, etc. But never seem to get what the applications for a capacitor are versus, well, a constant power source.
I'm not asking the question, just wish these things would take that extra step for beginners.