Absence

Don't get me wrong. I am all for the report of our friends from the EMSD.

Come on. Let's face it. With due consideration of the environment, what better do you expect them to say ?

And, at least, they gave an excellent demonstration of a basic principle in logic to the lay public: Absence of evidence does not mean evidence of absence.

In fact, their spokesman did really try hard to put forward the idea - in a most subtle but psychologically impressive manner. Now, everyone could master this argument.

An excellent lesson of general education, I would say.

Maybe their department head should be promoted to take charge of the Education Bureau.

PS. You may consider our friends are actually illustrating to us insufficient evidence does not mean evidence of absence. That's largely beyond the point.