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Memes about the concept “20th century”

1–9 of 9

The Great Lifespan Escape

At the time when the lines begin, in the mid-18th century, life expectancy in Europe and the Americas was around 35, where it had been parked for the 225 previous years for which we have data.3 Life expectancy for the world as a whole was 29. These numbers are in the range of expected life spans for most of human…

Non-English Languages Lack the Words for Talking About Technology

By the early 19th century, just three—French, English, and German—accounted for the bulk of scientists’ communication and published research; by the second half of the 20th century, only English remained dominant as the U.S. strengthened its place in the world, and its influence in the global scientific community has…

The Biggest Gains in g

It is one thing if a child’s IQ is elevated over time because she is drilled daily on vocabulary and basic number facts (two of the subtests of major IQ batteries). But Flynn and others have shown that these are not the areas where IQ has risen much. It is in what Flynn refers to as “on-the-spot reasoning” about…

Enlightenment as the Birth of Progress

Only in the 18th century Enlightenment did the concept of progress become widespread. Earlier, most people thought of history in terms of a fall from a past Golden Age, or perhaps repeating cycles. (If they thought of such things at all. Mostly they just worried about their next meals.) With the Industrial Revolution…

Solving Xenophobia

The in-group-vs.-out-group double standard, which had and has such catastrophic consequences, could in theory be eliminated if everyone alive were considered to be in everyone else’s in-group. This utopian prospect is remote, but an expansion of the conceptual in-group would expand the range of friendly, supportive…

Prediction Errors for the Information Age

Perhaps the best way to describe the flawed vision of fin de siecle futurists is to say that, with few exceptions, they expected the coming of an ''immaculate'' economy -- one in which people would be largely emancipated from any grubby involvement with the physical world. The future, everyone insisted, would bring an…