Demography is the study of the structure of human populations, including factors like births, deaths, aging, as well as health and economic factors. Some demographic changes happen slowly, over decades, but in a predicable way. For example, if you want to look at projections for the year 2050 of the ratio of the US working-age…
During the last half-century or so, one of the biggest changes in how humans live is the greater share of people around the world who live in cities. The UN Department of Economic and Social Affairs describes some pattern in its report on World Urbanization Prospects 2025: Summary of Results (November 2025). The report defines…
I have a five-part series (here, here, here, here, and here) explaining that demographic decline will lead to fiscal crisis. The main takeaway is that entitlement programs are a ticking time bomb, and I castigate politicians who want to kick the can down the road (or make a bad situation even worse). This is a global problem, not merely an American problem, as […]
I often get asked when the United States will suffer a Greek-style fiscal crisis. My answer is always “I don’t know,” though I freely admit we are heading in that direction. My lack of specificity isn’t merely because economists are lousy forecasters. I tell people it’s all about investor sentiment, and it’s hard to know […]
A fair number of countries have decided to recognize Palestine as a sovereign state (the U.N. can’t as it requires Security-Council approval, and the U.S. is on that council). This has had little effect as simple declarations like this have no force in international law (see reference to Natasha Hausdorff below). Now, however, another state […]
I recently argued that self-reports understate the personality gender gap. As long as some men rate their personalities relative to the average male, and some women rate their personalities relative to the average female, the gap the data reveal is less than the true gap. 798 more words
Japan must stop being overly optimistic about how quickly its population is going to shrink, economists have warned, as births plunge at a pace far ahead of core estimates. Japan this month said there were a total of 686,000 Japanese births in 2024, falling below 700,000 for the first time since records began in the […]
John Tyler was born in 1790 – 235 years ago. He became the 10th President of the United States, yet his grandson has just died. He had 15 children between 1815 (when he was 25) and 1860 (when he was 70). He was President from 1841 to 1845. One of the 150 was Lyon Tyler […]
Why Evolution is True is a blog written by Jerry Coyne, centered on evolution and biology but also dealing with diverse topics like politics, culture, and cats.
“We do not believe any group of men adequate enough or wise enough to operate without scrutiny or without criticism. We know that the only way to avoid error is to detect it, that the only way to detect it is to be free to inquire. We know that in secrecy error undetected will flourish and subvert”. - J Robert Oppenheimer.
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