Maybe you could have just told us what the "unbreakable law" is, so we can all see in 2 seconds? Instead of posting a link to video that doesn't seem very keen to tell us even in the first couple of minutes?

Thank you for compounding the problem. Skipping ahead to the conclusion, I am guessing the law is "be lean and flexible"?

No, the unbreakable law is Conway’s Law (not that Conway):

    “Organizations which design systems (in the broad sense used here) are constrained to produce designs which are copies of the communication structures of these organizations.”

Oh, ok. Thanks, but curious why that link instead of so many others which talk explicitly about that law

He talks of nothing else for most of an hour, and provides several salient and memorable examples.