Wisdom and knowlegde become separated when your understanding of a situation is based on your own outdated experiences. This is the reason that the number of stupid old people is growing rapidly. All their life experience doesn't make them better equipped to understand and govern the world. Quite the opposite: they are worse than beginners because they try to solve tomorrow's problem with yesterday's solutions. Mere knowlegde becomes out of date very quicly, but wisdom has no expiration date.