Jerry Soer
@jerrysoer
Joined February 2026
Published explainers(40)
Is Parenting Really Harder Today?
Everyone says modern parenting is impossible. But what does the data actually show about stress, time, and expectations across generations?
3/19/202613 sections
Is Parenting Harder Today?
The data behind why modern parents feel overwhelmed — from screen time anxiety to the collapse of the village.
3/18/20267 sections
How Karpathy's Autoresearch Lets AI Do Science While You Sleep
An interactive explainer on autoresearch — Karpathy's 3-file framework that lets an AI agent run 100 ML experiments overnight on a single GPU.
3/8/20269 sections
Why Does Aquarium Water Get Dirty?
A visual guide to the nitrogen cycle, beneficial bacteria, and the hidden ecosystem living in your fish tank.
3/5/20267 sections
Why Is the Sky Blue?
A visual journey through light, atmosphere, and the physics that paints our sky — from sunrise to sunset.
3/5/20267 sections
Cross-Site Scripting (XSS) Explained
A developer's guide to understanding XSS attacks, from injection vectors to defense strategies. Learn the three types of XSS and how to protect your applications.
3/4/20268 sections
Why The Last 10% Takes 90% of the Time
How AI coding tools like Claude amplify the brutal truth of software development: the final polish is where projects go to die.
3/4/20268 sections
What is Account Takeover? ATO Attacks Explained
A developer-focused technical guide to understanding, detecting, and preventing account takeover attacks in SaaS environments.
3/4/20267 sections
Agents of Chaos — First Week at Sandbox Inc.
An interactive plain-English explainer of the Agents of Chaos paper — 10 workplace incidents, 6 surprising wins, all documented.
3/1/202610 sections
Is There a God? Exploring the Eternal Question
An educational journey through philosophy, science, and human experience examining arguments for and against the existence of God.
2/26/20268 sections
Falcon 9: The Rocket That Changed Everything
An interactive visual explainer on the Falcon 9 — the reusable orbital rocket that redefined the economics of space launch with 617 missions and a 99.51% success rate.
2/26/20267 sections
How Tariffs Actually Work
An interactive explainer on tariffs, who pays them, and what the Supreme Court's 6-3 ruling means for trade.
2/20/2026
The Trader Joe's Story
How a Stanford MBA turned LA convenience stores into America's most beloved grocery brand.
2/20/2026
Claude Code Skills
Everything you need to know about Claude Code custom skills.
2/20/2026
OAuth 2.0
The authorization framework behind every 'Sign in with Google' button.
2/17/2026
OpenClaw
A unified gateway for multi-channel AI communication.
2/17/2026
Precision & Recall
The most important trade-off in machine learning, visually explained.
2/17/2026
Seed2.0 LLM
How ByteDance's frontier model hits GPT-5 benchmarks at 1/10th the cost.
2/17/2026
TikTok Algorithm
How the For You Page decides what you see next.
2/17/2026
Tortoise & Hare Algorithm
Floyd's cycle detection algorithm, visually explained.
2/17/2026
Stripe Payments
How Stripe processes a payment in 7 seconds.
2/17/2026
How the Oscars Actually Work
10,820 voters. One preferential ballot. And the most consequential campaign season in Hollywood.
2/17/2026
MicroGPT
Build a GPT from scratch in 150 lines of Python.
2/17/2026
Git Worktrees
Multiple branches, zero stashing — how worktrees let you work in parallel.
2/17/2026
How GPS Knows Where You Are
24 satellites, atomic clocks, and the speed of light.
2/15/2026
Girl Scout Cookies: The Business Behind the Box
200 million boxes. Two secret bakers. One brilliant business model.
2/15/2026
Airline Credit Card Money
How loyalty programs became worth more than the airlines themselves.
2/15/2026
How Money Actually Works
From barter to banks to bytes — the surprisingly weird system behind every dollar.
2/15/2026
How Butterflies Transform
From caterpillar to chrysalis to flight — the four stages of metamorphosis.
2/15/2026
How Your Eye Sees Color
Cones, rods, and the spectrum — how light becomes the colors you perceive.
2/15/2026
Going Back to the Moon
Artemis, Gateway, and the tech that makes a lunar return possible 50 years later.
2/15/2026
Why Do AIs Hallucinate?
From token prediction to the lawyer who cited six fake cases.
2/15/2026
How Volcanoes Work
Tectonic plates shift, magma rises, and pressure builds.
2/15/2026
How WiFi Works
Your router is a radio station. Your phone is a decoder.
2/15/2026
Roller Coaster Physics
At the top of a loop you're upside down at 60 mph with nothing holding you in but physics.
2/15/2026
Fall Into a Black Hole
If you fell into a black hole, you'd be fine. The problem is everyone else's perspective.
2/15/2026
Dividing Fractions
Every 5th grader is taught to 'flip and multiply.' Almost none are told why. Here's the visual proof.
2/15/2026
How Dinosaurs Went Extinct
Asteroid impact, nuclear winter, and the chain reaction that ended an era.
2/15/2026
What Is Gravity?
From Newton's apple to Einstein's spacetime fabric — why things fall, how orbits work.
2/15/2026
How the Electoral College Works
538 electors, winner-take-all rules, swing states, and the popular vote debate.
2/15/2026