[MichaelZuo]

> More generally, I think the point of the original post, and the original comment, are that verifying that something was communicated successfully requires out-of-band actions. Physically demonstrating something, or watching someone demonstrate something, are both out-of-band: neither work over all communication channels, like user manuals, or phone calls.

Of course? That's the implication of not just taking someone's word for it in the context of an office environment.

> Even in-person communication is often restricted to make verification difficult: imagine if you're in a water-cooler meeting with another developer, and you mention that you think they should take a different approach to a certain problem. Are you going to follow them back to their desk to verify that they really choose to do so? Probably not: it's both incredibly rude, and a bad use of your own time. But there is nothing in the water-cooler conversation that you can really do to check that they'll take your advice.

That would be the case if it was a trivial matter. But for really important things, then I don't see a problem?