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The 52:52:52 project, launching on this site and on social media in 2025, will help you address 52 issues with 52 responses over 52 weeks.

This site addresses what's changing, at the personal, organisational and societal levels. You'll learn about key changes across more than 150 elements of life, from ageing and time, through nature and animals, to kindness and love...and much more besides, which will help you better prepare for related change in your own life.

Halcyon In Kaleidoscope features irregular and fragmentary writings - on ideas and values, places and people - which evolve over time into mini essais, paying humble homage to the peerless founder of the genre. The kaleidoscope is Halcyon's prime metaphor, viewing the world through ever-moving lenses.

A Mundane Comedy is Dom Kelleher's new book, which will be published in 2025. The introduction is available here and further extracts will appear on this site and on social media in the coming months.

Population

What's Changing? - Demographics
Demographics
Halcyon Identifies 1 March 2025

 

Please see below recent demographics-related change.

 

See also: 

What Counts? - Global Population Trends
Demographics
Halcyon Impacts 8 October 2018

 

 

HOW GLOBAL POPULATIONS REACHED ITS CURRENT LEVEL

It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion. But growth has begun slowing, as women have fewer babies on average. When will our global population peak? And how can we minimize our impact on Earth’s resources, even as we approach 11 billion?

 

POPULATION GROWTH IS NOW DECLINING

On Habitats
blog image
Halcyon In Future 30 June 2018

According to the World Bank, more people now live inside this circle than outside of it - see @WorldBank pic.twitter.com/iN1gDHaFiV.