Treatment of natural disasters and wars in consumption of fixed capital

I am answering this both as a PhD in economics and as a Certified Accountant (I am both).

This quote for the wikipedia page is garbage, because it comes after the article has correctly informed the reader that CFC is an estimate that attempts to capture the economic reality rather than the accounting convention as regards consumption of capital for productive purposes.

If we characterize such estimates as "capricious", then all economic theory and econometric practice is "capricious". Certainly there are people who believe that, but one could imagine that we don't think highly of such opinions in this forum. I don't think such across-the-board unsupported criticism can have, or deserves to have, a "definite answer" from some "respectable source". In other words, I do not have to prove that I am not an elephant. Let the other side prove (not just argue) that I am.

More over, the sentence seems to imply that accounting/tax data are somehow "true to the essence of things". My objection to this is not related to the possibility of falsified records to avoid taxation or boost profits etc. This phenomenon exists but all past experience says that it does not exist to such extend as to make accounting/tax data unreliable on the aggregate.

So assume perfectly "honest" accounting data. In what sense are these data true to the essence of things? What is the essence of things here? Is the historical cost (which is a certain piece of information but referring to the Past), relevant for the Present?

Also, the passage appears to ignore that modern official accounting standards (both FASB and IFRS) advocate more and more for using "fair values"/estimates related to balance sheet assets than historical costs, exactly in an attempt to capture the economic reality of things, and in full knowledge that this will lead us to estimated Financial Statements, with a degree of uncertainty, inaccuracy, etc... So what? The purpose of Financial Statements is not perform or reflect account-settling, but to be the base of financial and economic analysis.

We "settle accounts" with the government through the filing of tax returns forms. We settle accounts with customers, suppliers, personnel, banks, etc by using the accounting ledgers, journals, the detailed bookkeeping and records of financial transactions. But we adjust all these data to produce Financial Statements, to the degree that the transactional reality differs from the economic reality. The fact that we may disagree as to what is the economic reality after all, should not surprise us, nor hinder us in the pursuit of relevant knowledge. It will not be the first "reality" that we disagree on.