Re: Your last point: If we test for understanding instead of facts, that is much more expensive to test for (as it cannot be automated... yet). On top of that,

Re: Your last point: If we test for understanding instead of facts, that is much more expensive to test for (as it cannot be automated... yet). On top of that, cheating is still possible with readily available tools, even today! (For example, that one AI that shall not be named ;)