In the case of the 737 FCC, if I remember correctly, the two CPUs inside were given different tasks , and also they are diffrent architectures themselves, so this solution is obviously not exactly applicable.
From what I read, 737 has two FCCs, and each FCC has two CPUs, one primarily for logic, the other primarily for data input/output.
Shielding works pretty simple if it is grounded
not that easy to do on a plane
Easy to do on a MAX, just nail a ground rod into the ground next to it, run a copper wire to the card cage, simples!
(See, I can make MAX jokes too!)
I haven't really kept up on the current status of the grounding recently. Could someone give me a (brief) rundown of what the current situation is?
The current situation is they are all still grounded, except that we saw the MAX-7 do what Boeing called an engineering flight requested by FAA yesterday, and Boeing's CEO reiterated handing off a fix to FAA in September and return to flight early Q4. So, not much has changed recently.