https://thealternativehypothesis.substa ... on-miracle
I did not carefully work through all of his numbers. But from giving it a quick read, I noted a couple of main points. The first point I was already aware of, but the second point was new to me.
1) The pre and post-war numbers for global Jewish population are usually something like 16.7M pre-war and 11M post-war, a difference of a bit less than 6M. But if you look through the AJC yearbooks, what you see is that they were originally using a lower prewar figure of around 15.8M. Then they revised it UP by about a million after the war. In the 1945-1956 yearbook, they say about 15.75M prewar and 11.5M postwar, which of course is a drop of only 4.25M. Then the next year they revised up the prewar number and revised down the postwar number. (Sidenote: the higher 16.7M number seems to ultimately derive from Arthur Ruppin's 1939 book Jewish Fate and Future. But there were competing figures like the AJC one which was about a million lower. After the war, it seems Ruppin's number was favored, for obvious reasons.)
https://ajcarchives.org/Portal/Yearbook ... Index/2606
2) There are major anomalies in the Jewish population figures in subsequent decades. The AJC originally reported growth from 11M in 1945 up to 14.5M in 1980. But the issue there is that the implied growth is too fast, i.e., it implies an unrealistically high Jewish fertility rate. If the population was 14.5M in 1980, that means the 11M was TOO LOW and that you got "population growth" as Jews who temporarily disappeared in the statistics came back in (when they moved to Israel, for example). So when they realized they screwed up and accidentally disproved the Holocaust, they actually "revised" the numbers down substantially. The revised 1980 number was only 12.8M, a drop of 1.7M.

There are some interesting implications of this. The Holocaust story depends heavily on that 1945 estimate of 11.0M. But why should we accept this 1945 number if by their own admission they couldn't even get the numbers right in 1980? We would expect 1945 to be the LEAST accurate year.
https://ajcarchives.org/Portal/Yearbook ... Index/3826