Jinshi Town at dawn — the Lishui River ferry port where memory begins

Earth LinC Station · Roots of Home

What Is Your
Source Code?

你的 Source Code 是什么?
一条通往故乡的链接

A hometown is not where a person comes from.
It is where their neural network first learned what matters.

Opening · 开篇

No matter how far we travel, or how long we stay away, there is always a place called hometown.

It is more than a location on a map. It is where our neural network first learned what matters — the streets we walked, the river we watched, the voices we heard, the people who cared for us, the seasons we lived through. Long before we built careers, explored the world, or met new people, these became the original training data of our lives.

Years later, we may travel farther than we ever imagined. Yet sometimes, in an unexpected story, a familiar taste, or an old memory, we find ourselves returning to the source code that quietly shaped who we are.

无论走得多远,漂泊多久,
每个人心里都有一个地方,叫故乡。
它不只是地图上的坐标。
它是我们的大脑第一次学会"什么重要"的地方。
街道、河流、学校、市场;
家人的声音、熟悉的气味、四季的更替;
这些看似平凡的片段,构成了生命最早的训练数据。
后来我们走向更远的世界,
却常常在某个故事、某种味道、某段记忆里,
重新遇见那个塑造自己的源代码。

"A hometown may be one of humanity's oldest readable records."

家乡,可能是人类最古老的可读记录之一。

No matter how far, how long you are travelling — a place named Hometown is a space where you set up your source code. You may never fully read it, or only glimpse part of it. You keep exploring the new, linking with people old and new. And one day, you find the best thing is that you discover your unique, native source code — the one that shapes you, heals you, and lets you grow with quiet pride.

A Living Link · 一位活着的链接

A Sharing That Opened a Window

From a post-1980s generation, deeply rooted from Jinshi Town

This week, a raw and luminous memory arrived in my inbox — from someone I have known for around thirty years. What struck me most was: I did not know this about him. Even across three decades of friendship, this memory was new to me. That is how a source code works — it shapes quietly, invisibly, and yet completely.

What I could feel and believe: it flows life-long, like a spirit river. Here is his sharing:

Someone who moves from their hometown yet returns frequently — tasting great food, meeting family and friends, visiting memory. Someone else stays linked by belonging so strong that it brings everything nearby, no matter the distance, no matter the time. Not many people can naturally carry that role as a living link to Hometown. Here, we are glad to know one. Appreciation on your sharing.

Neuroscience · 神经科学视角

A Neural Network Perspective

一个神经网络的视角

If we imagine the human brain as a large-scale neural network — in the first dozen years of life, the model's training data comes primarily from the textures and rhythms of the place where you grew up. These are not knowledge. They are something deeper:

Embedding Layer · 嵌入层

Hometown Training Data

  • Streets 街道
  • Rivers 河流
  • Schools 学校
  • Markets 市场
  • Grandparents 祖父母
  • Dialect 方言
  • Smell 气味
  • Seasons 四季

The most foundational vectors — lowest layer, highest persistence

Reasoning Layer · 推理层

Later Exploration

  • Beijing 北京
  • Shanghai 上海
  • Shenzhen 深圳
  • New cities, new roles
  • Career & relationships
  • Ideas & perspectives
  • The wider world

Built on the embedding — reasoning expands but roots hold

"Why do we still remember the ginkgo tree at the school corner at age 40 — but forgot last week's meeting?"

40多岁时还清晰记得高中的转角那棵银杏树,却忘了上周开的会议。
因为那棵树参与了模型训练,而那场会议只是一次推理。

Neuroscience offers two beautiful concepts: Place Cells and Grid Cells — discovered by John O'Keefe and the Mosers, Nobel Prize 2014. They help us build spatial maps. And spatial maps become the organizing framework for memory itself. A hometown is not merely a location. It is a Memory Index.

Place
地点
Memory
记忆
Identity
身份
Responsibility
责任
Stewardship
守护者意识

The most fascinating possibility: many people do not merely miss their hometown. They miss the version of themselves who first understood the world — the self who was still reading the original model for the very first time.

Living Place · 活着的地方

Jinshi Town

津市 · 常德 · 湖南省 — A Dock Town Born from the Lishui River

Jinshi is a small city in northern Changde, Hunan Province, born at the ferry crossing of the Lishui River (澧水). Its name echoes the old ferry dock — a place where people, goods, stories, and seasons flowed through for generations.

Area ~556 km²
Population ~300,000
River 澧水 Lishui
Province Hunan 湖南
Prefecture Changde 常德
Elevation Low plain, ~40m
Climate Subtropical humid
Biodiversity Maoli Lake Nature Reserve
🌊

Rivers & Water

澧水 Lishui

The Lishui River defines the city's identity and gave birth to its dock culture. Historically a vital waterway for goods and people across Hunan.

🏔️

Mountains

嘉山 Jiashan

Home to the legendary 望夫岩 Watching-Husband Rock and the ancient 药山寺 Yaoshan Temple zen forest, a quiet mountain of pilgrimage and story.

🦢

Lakes & Birds

毛里湖 Maoli Lake

A provincial nature reserve. Vast misty waters hosting migratory birds including grey herons, egrets, and wild ducks. A living biodiversity corridor.

🐟

Fish & Ecology

River fish culture

Carp, mandarin fish, silver carp from the Lishui. Wetland ecology supporting freshwater species, reeds, lotus, and seasonal fisheries.

🍜

Food Identity

津市牛肉粉

Jinshi Beef Rice Noodles — nationally famous, originating from the dock workers' hearty morning meals. A bowl carries a city's DNA.

🏭

Industry

Salt, trade, textile

Historically a salt distribution hub. Modern industries include food processing, salt chemicals, and light manufacturing. The dock spirit lives on in commerce.

🌿

Plants & Nature

Wetland flora

Lotus, reeds, water hyacinth, riverside willows. Seasonal wildflower meadows along the Lishui. Ancient camphor trees shade the old streets.

🏫

Education

Schools of the dock town

Multiple middle and high schools with strong local academic traditions. Many Jinshi-born people carry their education across China and beyond — a diaspora of the mind.

Top 10 · 十大推荐

Must Experience in Jinshi

Ten reasons to return, stay, or finally go

01

A bowl of Beef Rice Noodles at dawn

清晨一碗津市牛肉粉

🍜 Food · Iconic · Morning ritual

02

Lishui River ferry walk at sunrise

澧水码头晨光漫步

🌅 River · Memory · Dock history

03

Maoli Lake — misty water & migratory birds

毛里湖烟波鸟影

🦢 Nature · Lake · Biodiversity

04

Jiashan Mountain — Watching-Husband Rock

嘉山望夫岩传说

⛰️ Hiking · Legend · Views

05

Yaoshan Temple zen forest

药山寺禅林古道

🏯 Temple · Meditation · Ancient trees

06

Old River Street — Sanzhou Street

老河街 · 三洲街时光

🏘️ Heritage · Dock culture · Stories

07

Fresh fish from the Lishui catch

澧水鲜鱼宴

🐟 Local fish · River cooking · Seasonal

08

Lotus season at Maoli wetlands

毛里湖荷花盛季

🪷 Summer · Photography · Peace

09

Local salt-cured pork & village cuisine

乡镇腊肉与农家菜

🥩 Rural food · Craft · Homeflavour

10

Watch a green-skin train pass the town

听绿皮火车穿城而过

🚂 Nostalgia · Departure · Return

References · 参考文献

Four Layers of Foundation

Neuroscience → Memory → Place → Long-term Observation — a bridge from brain science to a living link, from hometown to stewardship.

Layer I · Neuroscience

Place and the Self: An Autobiographical Memory Synthesis

Ivan Knez, 2014 · APA PsycNet

A place becomes "a place of mine" through emotional and autobiographical memory. Core connection: Place → Memory → Identity → Self.

APA Record ↗

Layer I · Neuroscience

Unveiling the Neural Network in Episodic Autobiographical Memories

Scientific Reports · Nature Portfolio

Humans create a sense of self through episodic memory. Mental time travel connects place, self, and personal history.

Scientific Reports ↗

Layer II · Memory of Places

Key Neurons Found to Predict Memory of People and Places

University of Bonn · Neuroscience News

Concept Neurons and Location Neurons become associated with specific people and places and predict future recall success.

Neuroscience News ↗

Layer II · Place Cells

The Hippocampus as a Cognitive Map

John O'Keefe, Nobel Prize 2014

Discovery of Place Cells — neurons that fire when an animal occupies a particular location, forming the brain's inner map of space.

Nobel Prize ↗

Layer II · Grid Cells

Grid Cells & the Brain's Spatial Map

May-Britt & Edvard Moser, Nobel Prize 2014

Grid Cells create a coordinate system for navigation and memory — the brain's internal map of the world we inhabit.

Nobel Prize ↗

Layer III · Returning Observer

Walden

Henry David Thoreau · Walden Pond

What happens when one person pays close attention to one place for a long period of time? The original long-term observer.

Read Walden ↗

Layer III · Long-term Records

Broadbalk Experiment

Rothamsted Research, UK · Started 1843

Same Place + Returning Observer + Readable Records. One of the world's longest-running ecological experiments, since 1843.

Rothamsted ↗

Layer IV · Place & Identity

Space and Place

Yi-Fu Tuan · Father of Humanistic Geography

Place is space made meaningful through experience. The foundation of understanding why places matter to who we become.

University Press ↗

Layer IV · Belonging

Place and Placelessness

Edward Relph · Routledge

Why people develop a deep sense of belonging — and what is lost when that connection is broken or forgotten.

Routledge ↗

Layer IV · Stewardship

The Unsettling of America

Wendell Berry

What happens when people lose connection with the places that shaped them? A quiet, powerful meditation on place and responsibility.

Wendell Berry ↗

Closing · 结语

"A hometown is not where a person comes from.
It is where their neural network first learned what matters."

家乡不仅是一个人来自哪里。
家乡是他的大脑第一次学会"什么重要"的地方。

This article began with a simple sharing — not a research paper, not a formal interview. Just one person's memories of a hometown, a river, a ferry crossing, and a lifetime of returning.

In Earth LinC, we often speak about long-term observation. Perhaps one of the most important observations is not about a forest, a river, or a landscape. It is about the enduring relationship between a person and a place.

Same Place · Returning Observer · Readable Records

Thank you for the openness to share these memories from Jinshi — for reminding us that a hometown is a living archive of people, rivers, streets, voices, seasons, and relationships that quietly shape who we become.

Your source code belongs to you — and all best wishes come true.

Readable Earth · Reading a place.

Readable Hometown · Reading the place that first shaped us.