The Deagel corporation is a minor branch of US military intelligence, one of the many secretive organizations which collects data for high-level decision-making purposes and prepares confidential briefing documents for agencies like the National Security Agency, the United Nations, and the World Bank.
It is known, for example, to have contributed to a Stratfor report on North Korea.
With this kind of pedigree, Deagel should be seen as a legitimate player in the intelligence community and not merely a disinformation asset.
If so, then it must be assumed that its population predictions for 2025, as well as its industrial output predictions on a nation-by-nation basis, are based on strategic assumptions which are shared and well understood by other players in the intelligence community.