[twawaaay]

I think the problem needs to be thought through separately for individuals and for organisations.

For individuals -- yes, no-one knows what they are doing. Most people, including successful ones, are too embarrassed or insecure to admit this. The world is divided into ones that understand this and ones that do not.

For organisations -- no, that is not true. Some organisations accept the above limitation and rather than ignore it, try to build systems that take it into account. My company does this -- CEO knows this, senior leadership knows this, we are working together accepting our individual limitations and trying to find ways to work around them. We hate internal politics and put premium on being honest about problems or capabilities.

Unfortunately this does not seem to work for governments. Governments is all about politics, all about image. It is not fundamentally incompatible with being honest about ones limitations but in practice very close to being so.