Kazuki Nakayashiki

Kazuki Nakayashiki

@kazuki

Cofounder of Glasp. I collect ideas and stories worth sharing 📚

San Francisco, CA

Joined Oct 9, 2020

1080

Following

7388

Followers

1.59k

pages

14.69k

highlights

214.35k

views
M
W
F
May
Jun
Jul
Total Days:
Total Weeks:
918-Days 📚
215-Weeks 📚
Show All

Having Kids

www.paulgraham.com/kids.html

Parenting
Life Lessons
Purpose

Dec 25, 2025

72

State of Consumer AI 2025

www.a16z.news/p/state-of-consumer-ai-2025

AI
Consumer App

Dec 18, 2025

10

VO2 max: What is it and how can you improve it? - Harvard Health

www.health.harvard.edu/staying-healthy/vo2-max-what-is-it-and-how-can-you-improve-it

VO2 max
Health
Running

Dec 16, 2025

71

Tri Training Harder: Run Testing - Calculating your VDOT Pace and Lactate Threshold Heart Rate

tritrainingharder.com/blog/2013/10/run-testing-calculating-your-vdot-pace.html

Running
VDOT

Dec 11, 2025

51

Growing out of a crisis: five strategy lessons from Garmin – WeAreOutcome

weareoutcome.co/blog/growing-out-of-a-crisis-five-strategy-lessons-from-garmin/

Founding Story

Dec 9, 2025

143

Interesting facts and history of the Garmin brand

www.aurifo.com/ja/a/interesting-facts-and-history-of-the-garmin-brand

Founding Story

Dec 9, 2025

31

Michael Horvath, CEO and Co-Founder of Strava

www.goldmansachs.com/insights/talks-at-gs/michael-horvath.html

Startup

Dec 8, 2025

21

Midpack marathon runners: Finally, here’s some proper data

www.runnersworld.com/uk/news/a62965829/average-marathon-runners/

Running

Dec 5, 2025

71

What is running economy and why does it matter?

www.runnersworld.com/uk/training/a773975/what-is-running-economy/

Running Economy
Running

Dec 4, 2025

102

Understanding VDOT | Your Guide to Running Performance

www.brooklynrunningco.com/blogs/news/explaining-vdot/

VDOT
Running

Dec 4, 2025

4

Curate People

nav.al/curate-people

Startup
Advice
Founder

Nov 25, 2025

141

AI & Artistry, the Resurgence of Hardware Startups, & Unicorns that are Really Rabbits

www.implications.com/p/ai-and-artistry-the-resurgence-of

AI
Creator Economy
Startup

Nov 19, 2025

82

The Art of Going All In

read.glasp.co/p/the-art-of-going-all-in

Life Lessons
Self-improvement
Mindset

Nov 13, 2025

112

How I succeed by starting companies that (mostly) fail.

neverenoughnewsletter.kit.com/posts/how-i-succeed-by-starting-companies-that-mostly-fail

Business Model
Advice

Nov 4, 2025

161

How to Keep Winning

amasad.me/keep-winning

Startup
Mindset
Life Lessons

Nov 3, 2025

182

Observations on People, the World, and Everything Else

www.generalist.com/p/observations-on-people-the-world

Life Lessons
Self-improvement

Oct 31, 2025

182

How Glasp Grew to 3.5 Million Users Organically

knowledge.gtmstrategist.com/p/how-glasp-grew-to-35-million-users

Glasp
AI
Growth
Founding Story

Oct 24, 2025

18

AI Slop Arbitrage

gregisenberg.kit.com/posts/ai-slop-arbitrage

AI
Marketing

Oct 24, 2025

102

Ben Horowitz's 5 Lessons for Founders and CEOs

speedrun.substack.com/p/ben-horowitz-5-lessons-for-founders-and-ceos

Founder
Startup
Advice

Oct 22, 2025

172

The Next Frontier of Data Moats, Verticals Mashing Together, & The Perils of Generative-Only Apps

www.implications.com/p/the-next-frontier-of-data-moats-verticals

AI
Moat

Oct 17, 2025

7

Glasp Spotlight: Eliot Peper on Ensorcelled and the Power of Storytelling

read.glasp.co/p/glasp-spotlight-eliot-peper-on-ensorcelled

Creativity
Book
Storytelling

Oct 11, 2025

32

5 Traits That Separate People Like Oprah Winfrey and Bill Gates from the Herd

leaderandlearner.substack.com/p/5-traits-that-separate-people-like

Success
Self-improvement
Reading

Oct 10, 2025

7

Good Products Are Hard to Vary

nav.al/good-products

Design
Knowledge

Oct 2, 2025

31

Abundant Intelligence

blog.samaltman.com/abundant-intelligence/

AI

Sep 29, 2025

2

Nuance vs. Tribalism, Empowering Creators vs. Refactoring Process, & Final Mile Leadership

www.implications.com/p/nuance-vs-tribalism-empowering-creators

AI
Leadership
Creativity

Sep 22, 2025

61

The Anti-Pitch: When haters hate your startup idea

andrewchen.substack.com/p/the-anti-pitch-one-liner-rebuttals

Startup
Startup Idea

Sep 19, 2025

3

The AI Productivity Paradox: High Adoption, Low Transformation

inferencebysequoia.substack.com/p/the-ai-productivity-paradox-high

AI
Future of Work
Startup

Sep 19, 2025

142

OpenAI's Product Lead on Achieving Product-Market Fit in the Age of AI

www.thevccorner.com/p/ai-product-market-fit-framework-openai

AI
PMF
Startup

Sep 18, 2025

62

11 Life-Changing Perspectives I've Picked Up from Brilliant People

read.glasp.co/p/11-life-changing-perspectives-ive

Mindset
Life Lessons

Sep 15, 2025

153

Not-knowings: A guide for explorers - Vaughn Tan

vaughntan.org/nkmod

Decision-Making
Risk Management

Sep 15, 2025

7

Why retention is so hard for new tech products

andrewchen.substack.com/p/lessons-learned-from-staring-at-thousands

Retention
Startup
Growth

Sep 8, 2025

182

Go-to-Market Milestones: A Roadmap for Scaling Your Startup

seanellis.substack.com/p/go-to-market-milestones-a-roadmap

Growth
Startup
PMF

Sep 6, 2025

8

How to Win the New SEO Game: AI Search, GEO, and the Future of Visibility

knowledge.gtmstrategist.com/p/how-to-win-the-new-seo-game-ai-search

SEO
AI
GEO

Sep 5, 2025

12

AI will change how we build startups -- but how?

andrewchen.substack.com/p/ai-will-change-how-we-build-startups

AI
Startup

Sep 3, 2025

3

"Will AI be as big of a catalyst for a consumer AI wave as mobile?"

www.sarahtavel.com/p/will-ai-be-as-big-of-a-catalyst-for

AI
Economics

Sep 3, 2025

61

The Great Unlock of Your Time & How the Sway of Brand is Changing

www.implications.com/p/the-great-unlock-of-your-time-and

AI
Branding

Sep 3, 2025

91

Wise Words from Wise People (August 2025)

leaderandlearner.substack.com/p/wise-words-from-wise-people-august

Quotes
Life Lessons

Sep 3, 2025

141

The Poison of Status

read.glasp.co/p/the-poison-of-status

Human Behavior
Life Lessons

Aug 30, 2025

72

Jim Collins - Concepts - Fire Bullets, Then Cannonballs

www.jimcollins.com/concepts/fire-bullets-then-cannonballs.html

Startup
Growth

Aug 30, 2025

2

This Free Browser Extension Lets You Highlight and Save Quotes From Any Book or Article

www.makeuseof.com/free-browser-extension-highlight-save-quotes-from-any-book-or-article/

Glasp

Aug 22, 2025

61

Face it: you're a crazy person

www.experimental-history.com/p/face-it-youre-a-crazy-person

Life Lessons
Career

Aug 18, 2025

6

GPT-5 prompting guide | OpenAI Cookbook

cookbook.openai.com/examples/gpt-5/gpt-5_prompting_guide

GPT-5
AI
Prompt

Aug 15, 2025

8

GPT-5 Prompt Migration and Improvement Using the New Optimizer | OpenAI Cookbook

cookbook.openai.com/examples/gpt-5/prompt-optimization-cookbook

GPT-5
AI
Prompt

Aug 15, 2025

51

Learn Like an Athlete - David Perell

perell.com/essay/learn-like-an-athlete/

Learning
Self-improvement

Aug 11, 2025

71

Introducing GPT-5

openai.com/index/introducing-gpt-5/

AI
LLMs
OpenAI

Aug 7, 2025

11

Different Kinds of Smart

collabfund.com/blog/different-kinds-of-smart/

Life Lessons

Aug 6, 2025

103

You Have to Enjoy It a Lot

nav.al/enjoy

Marketing
Founder
Life Lessons

Aug 1, 2025

4

Reflections on OpenAI

calv.info/openai-reflections

OpenAI
Culture
AI
Startup

Aug 1, 2025

142