Your Brain - Use It or Lose It

[ChemEngrMBA]

Google.com had no idea.

ChatGPT.com said this:

Those 5-digit groups look like a code, but there is no single famous message universally known in exactly that number format. Several historic communications use 5-digit groups, but without knowing which system they come from, the numbers cannot be decoded—they’re meaningless until paired with the correct key.

[MeganC]

Google.com had no idea.

ChatGPT.com said this:

Those 5-digit groups look like a code, but there is no single famous message universally known in exactly that number format. Several historic communications use 5-digit groups, but without knowing which system they come from, the numbers cannot be decoded—they’re meaningless until paired with the correct key.

ChatGPT isn't so clever given that this code was cracked by a bunch of men with slide rules.