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    Three words: proximity, longing, and calm.
    Blog 7 min read

    Propinquity, Saudade, Sangfroid: Exploring Closeness, Longing, and Calm

    Last updated: Tuesday 14th April 2026

    Quick Summary

    This blog post delves into the fascinating world of seemingly simple everyday concepts like closeness, longing, and inner calm, exploring their nuances. It's surprisingly insightful, highlighting how our understanding of these complex human experiences can be surprisingly universal and deeply personal, all through the lens of specific, evocative words.

    In a hurry? TL;DR

    • 1The 10,000-step goal originated from a 1960s Japanese marketing campaign, not medical research.
    • 2Actual health benefits for step counts begin much lower than 10,000, with significant mortality reduction around 4,400 steps.
    • 3The men's underwear index, proposed by Alan Greenspan, suggests consumer spending on basics can signal economic downturns.
    • 4Economic indicators can be found in unexpected consumer purchasing habits, like delaying the purchase of necessary goods.
    • 5Metrics often have origins in marketing or cultural norms, not purely scientific or objective data.
    • 6It's important to question the origins of metrics instead of accepting them as absolute truths.

    Why It Matters

    It's surprising to learn that many everyday metrics, like the 10,000-step goal, are actually rooted in marketing strategies rather than scientific research.

    Daily life is governed by numbers that feel like ancient truths but are often little more than clever marketing or historical accidents. From the speed of the planet beneath your feet to the exact count of steps needed for health, the metrics we use to define our existence frequently have origins far stranger than a textbook would suggest.

    TL;DR

    • Scientific benchmarks like the 10,000-step goal often originate from 1960s marketing rather than clinical research.
    • Economic indicators can be found in surprising places, such as the sales volume of basic necessities.
    • Human biology and cognitive health are deeply influenced by simple environmental factors like pet ownership and diet.
    • Global financial structures often rely on domestic cultural norms that vary wildly between borders.

    The Marketing Myth of 10,000 Steps

    Most people pacing their hallways at 11:30 PM to hit a five-digit step count believe they are fulfilling a biological requirement. In reality, they are participating in a sixty-year-old Japanese advertising campaign. The 10,000-steps-a-day target came from a 1965 Japanese pedometer marketing campaign rather than from a clinical standard, specifically for a device called the Manpo-kei.

    The name translates literally to ten-thousand-step meter. The number was chosen because the Japanese character for 10,000 looks vaguely like a person walking. It was a branding masterstroke, not a medical breakthrough.

    According to Dr I-Min Lee, a professor of epidemiology at the Harvard T.H. Chan School of Public Health, women who averaged about 4,400 steps per day had significantly lower mortality rates compared to those taking 2,700 steps. The benefits leveled off at approximately 7,500 steps. While 10,000 is a fine goal, it is an arbitrary peak created to sell hardware.

    The Underwear Index and Economic Anxiety

    When the economy falters, experts look at the bond market. Alan Greenspan, the former Federal Reserve Chairman, looked at cotton briefs. Greenspan was famously a proponent of the men's underwear index, an informal recession signal based on a simple psychological observation: men view underwear as a non-discretionary but invisible necessity.

    In a thriving economy, sales are stable. But when household budgets tighten, men delay replacing worn-out basics because nobody sees them. Unlike a new car or a coat, underwear is the last thing to be refreshed. A dip in these sales often precedes a broader cooling of the economy. It is a reminder that the most profound shifts in global markets often start in the most private corners of the home.

    The Financial Matriarchy of Japan

    While the West often associates financial control with corporate glass ceilings, the domestic reality in Japan flips the traditional script. It is standard practice in many Japanese households for the wife to manage household finances, with husbands handing over their full salary in exchange for a monthly spending allowance, known as okozukai.

    This system, known as the kakeibo method, creates a unique social dynamic where the primary earner often has the least visibility into the total family wealth. It is a cultural metric of trust and domestic division of labour that complicates the typical Western perception of gendered financial power.

    Movement Without Effort: The Cosmic Speedometer

    We perceive ourselves as stationary when seated in a chair, but the physics of the universe suggests a frantic level of movement. Earth rotates at roughly 1,000 miles per hour, orbits the sun at 67,000 miles per hour, and the entire galaxy is drifting through the void.

    The Solar System moves at about 370 km/s relative to the cosmic microwave background, which is the leftover radiation from the Big Bang. This means you cover roughly 2,300 miles every 10 seconds without ever leaving your seat. Our senses are tuned only to acceleration, leave us blissfully unaware of the staggering velocity at which we are currently hurtling through the cosmos.

    The Biology of Better Habits

    Our metrics for health often involve complex gym routines, but some of the most effective interventions are surprisingly simple. For instance, the quality of our recovery is frequently more important than the intensity of our exertion.

    Furthermore, our long-term mental sharpness might depend on our household companions. Long-term studies have found that pet ownership, especially dogs and cats, is associated with slower cognitive decline in older adults. The daily routine, emotional regulation, and physical activity required by a pet act as a cognitive buffer against aging.

    Comparing Daily Metrics and Their Origins

    Metric Origin or Source Primary Purpose Real-World Impact
    10,000 Steps 1965 Marketing Campaign Selling Pedometers Established a global fitness standard.
    Underwear Index Alan Greenspan / Economic Theory Predicting Recessions Identifies shifts in discretionary spending.
    Domestic Allowance Japanese Cultural Tradition Household Management Defines financial power within the family.
    Two Kiwifruits Study on Elite Athletes Sleep Improvement Improves rest by nearly 60 minutes.
    Cosmic Speed CMB Radiation Observations Astrophysics Measures absolute motion in the universe.

    The Weight of Context

    The metrics we choose to follow define our priorities, but understanding their origins allows us to use them more effectively. A step count is a useful nudge, but it isn't a holy commandment. An economic index based on laundry is a curiosity, but it reflects the genuine anxiety of the working class.

    Even the way we age is susceptible to these small adjustments. If a dog in the house or a specific piece of fruit can measurably shift our cognitive and physical health, it suggests that the most important metrics are not the ones we track on a screen, but the ones we weave into our daily rituals.

    By questioning the 10,000-step myth or the velocity of the solar system, we stop being passive observers of our lives and start becoming informed navigators of them.

    Key Takeaways

    • Question the origin: Many of our daily targets are the results of marketing, not science.
    • Observe the small: Economic shifts are often visible in basic, private purchases.
    • Embrace the simple: Small dietary changes and pet ownership have outsized impacts on long-term health.
    • Appreciate the scale: You are moving at 370 km/s through the universe right now.

    Frequently Asked Questions

    The 10,000 steps a day goal originated from a 1965 Japanese pedometer marketing campaign, not from medical research. The number was chosen partly because it looked like a person walking and was a successful branding strategy.

    The men's underwear index, popularized by Alan Greenspan, suggests that when the economy falters, men are more likely to delay replacing worn-out underwear because it's a non-discretionary item that isn't publicly visible, signaling a broader economic slowdown.

    In many Japanese households, it is common for the wife to manage the household finances. Husbands often hand over their entire salary and receive a monthly allowance for personal spending.

    Sources & References