It seems you've completely lost the plot. Refer to what we're replying to
>Can you think of any economically valuable reason why it might be important to know about weather trends or events in advance? Any at all?
You're damning me for questioning someone who presumed market efficiency with an appeal to economic value to a government that stands to capture that hypothetical value? The premise of the government acting on market efficiency was what I responded to, not my introduction.
If we're discounting the premised market efficiency of the government actor to which I replied, then the question was moot, and you're targeting the wrong commenter. But of course, that wouldn't fit your two-faced (and post response underhanded conniving editing 'centrally-') rebuttal, so you wait to set the catch-22 trap of damning rebuttal comments for acting on a premise introduced in a counter viewpoint.
I don't see how I've "lost the plot."
The comment you originally responded to does not presume market efficiency. In fact it carries the opposite assumption - if markets were efficient then the loss of economic value from weather forecasting would be immediately apparent and we wouldn't need to discuss larger-concept models with the goal of overcoming inefficiencies.
That original comment posits an idea of "economic value" that is independent from what can be captured by whomever is contributing to it, which is what you seemed to be rejecting.