[hugh-avherald]

I think "no idea" is an entirely reasonable summary of the magnitude of the uncertainty.

[Dylan16807]

To me, "no idea" suggests the number is likely off by an order of magnitude or more, and even the worst case country in this article was less than 2x with bigger countries having better numbers.

[tjwebbnorfolk]

That might be true in measuring abstract absolutes. But I'd agree that if you don't even know if your population is larger or smaller than it was 40 years ago, then it's perfectly fair to say that you have "no idea" what's going on.

[ericyd]

To me, "no idea" simply means we don't have strong evidence to support any given conclusion, which I think is a well-defended position from the OP.