[ThePythonicCow]

maybe people should focus a bit more on the fundamentals

Eh ... we can't all be Newton or Einstein. And even those guys had to spend most of their life in the world of "laws taken for granted."

[engineer dude]

By the way thi is not the fourth pasive component more that it completess the hysteric components.

Passive devices
Inductor
Capacitor
Resitor

Passive hysteric devices
Ferroelectric Capacitor
Magnetic materials such a ferrite
Memistor

Passive hysteric devices with retentivity
Electret
Magnet
Memistor?