Also worth noting that "shielding" electronics is not a binary field-- The damage that occurs depends on both the strength of the magnetic field produced and th

Also worth noting that "shielding" electronics is not a binary field-- The damage that occurs depends on both the strength of the magnetic field produced and the specific electronics in question. A strong enough EMP, perhaps one from a coronal mass ejection on the sun, might require a mountain of shielding to adequately protect sensitive electronics. On the flip side, a vacuum tube calculator would be much more resilient than an iphone.