I think it is a good advice, but if you want to get any deeper, it will quickly trickle down to advanced physics in kind of 'need to grasp lots of grounding phy

I think it is a good advice, but if you want to get any deeper, it will quickly trickle down to advanced physics in kind of 'need to grasp lots of grounding physics knowledge at once to get it' form. Oh, and we are currently having a geomagnetic G2/G1 storm.