Publication

Gradient Growth

@gradient-growth

articles: 21
total claps: 167
top claps: 100
avg read: 7.7 min
paywalled: 18
active: 2026-03-31 → 2026-07-14

Wiki topics

BIZ · Business Strategy · 14 INV · Investing & Markets · 14 ECO · Economy · General · 7 EDU · Education & Learning · 6 ML · Machine Learning · 6 EVAL · Evaluation & Benchmarks · 4 LLM · Large Language Models · 4 📐 · Mathematics · 4

Top tags

#investing ·14 #capital-allocation ·14 #portfolio-management ·8 #machine-learning ·5 #wealth-management ·4 #large-language-models ·3 #quantitative-finance ·3 #behavioral-finance ·3 #stock-market ·3 #personal-finance ·3

ECO AI SCI

DR Dr. Lester Leong · Gradient Growth

I Ran a Multiple-Testing Audit on My Own Live Strategy. It Failed.

Deflated Sharpe and probability of backtest overfitting, applied to a sleeve I was already trading with real money. The math, the charts…

Jul 14, 2026 · 6 min read · 100 claps paywalled #quantitative-finance #backtesting #trading

I Ran a Multiple-Testing Audit on My Own Live Strategy. It Failed.

AI HUM

DR Dr. Lester Leong · Gradient Growth

I Spent Years Catching My Models Peeking at the Future

My AI Agents Do It Too.

Jun 30, 2026 · 4 min read · 50 claps paywalled #ai-agent #large-language-models #machine-learning

MDA ECO

DR Dr. Lester Leong · Gradient Growth

20 Investor Letters Worth More Than a Finance Degree

The reading list that trains judgment, not just knowledge, and the study system that makes it stick

Jun 23, 2026 · 10 min read · 11 claps paywalled #investing #capital-allocation #value-investing

20 Investor Letters Worth More Than a Finance Degree

AI HUM

DR Dr. Lester Leong · Gradient Growth

LLM-as-Judge Is Not a Safety Net

Why deterministic eval gates belong in every production LLM pipeline, and how to add them in ten lines of code

Jun 01, 2026 · 6 min read · 4 claps #artificial-intelligence #python #machine-learning

ECO SOC

DR Dr. Lester Leong · Gradient Growth

The Power Law of Investment Decisions

Why a handful of calls drive the vast majority of your lifetime returns, and what that means for how you build a portfolio

Jul 14, 2026 · 9 min read · 2 claps paywalled #investing #power-law #portfolio-management

HUM AI SCI

DR Dr. Lester Leong · Gradient Growth

I Audited My Own Eval Gate. It Was Failing Builds Five Times Too Often.

A regression gate that checks six metrics runs six hypothesis tests at once. Mine did not correct for that, and the false-alarm math is…

Jun 14, 2026 · 6 min read · 0 claps paywalled #llm #machine-learning #mlops

ART ECO TCH

DR Dr. Lester Leong · Gradient Growth

I Closed Robinhood and Schwab. Here Is the Institutional Infrastructure That Replaced Them.

Phase 2 is live. Here is what changed, what the architecture looks like, and what I am watching.

Jun 01, 2026 · 6 min read · 0 claps paywalled #portfolio-management #investing #automation

ECO

DR Dr. Lester Leong · Gradient Growth

How the Rothschilds Built a 250-Year Banking Dynasty

What modern investors can learn from the longest-lasting financial dynasty in history

Apr 07, 2026 · 9 min read · 0 claps paywalled #investing #capital-allocation #wealth-management

How the Rothschilds Built a 250-Year Banking Dynasty

ECO HUM

DR Dr. Lester Leong · Gradient Growth

Your Effort Doesn’t Deserve a Return

The most dangerous belief in investing is that working harder guarantees better results. It doesn’t. And the guilt of “not doing enough” is…

Jun 30, 2026 · 4 min read · 0 claps paywalled #investing #capital-allocation #behavioral-finance

ECO HUM

DR Dr. Lester Leong · Gradient Growth

25 Companies Every Serious Investor Should Study (And What Each One Teaches)

A tiered curriculum for building pattern recognition across compounders, tech supercycles, legendary holdings, disruption plays, and market…

Jun 16, 2026 · 10 min read · 0 claps paywalled #investing #company-analysis #stock-market

25 Companies Every Serious Investor Should Study (And What Each One Teaches)

ECO

DR Dr. Lester Leong · Gradient Growth

Why the Best Investors Spend Most of Their Time Doing Nothing

The non-linear payoff curve that rewards preparation over activity, and why most investors get this backwards

Jul 07, 2026 · 9 min read · 0 claps paywalled #investing #capital-allocation #portfolio-management

Why the Best Investors Spend Most of Their Time Doing Nothing

ECO HUM

DR Dr. Lester Leong · Gradient Growth

8 Traits Every Billionaire Investor Shares

These aren’t intelligence traits. They’re character traits. And they explain why temperament beats IQ in capital allocation.

May 12, 2026 · 10 min read · 0 claps paywalled #investing #capital-allocation #building-wealth

8 Traits Every Billionaire Investor Shares

ECO

DR Dr. Lester Leong · Gradient Growth

Investing Is a Fog of War Game, and Most People Play It Wrong

Why you never get the full map before you move, and the two-part system that lets you act anyway

Jun 12, 2026 · 9 min read · 0 claps paywalled #investing #decision-making #mental-models

Investing Is a Fog of War Game, and Most People Play It Wrong

ECO

DR Dr. Lester Leong · Gradient Growth

The Permanent Capital Allocator Flywheel

How some investors go from small capital to institutional scale without taking massive risks, and why the loop is almost impossible to stop…

Apr 28, 2026 · 9 min read · 0 claps paywalled #investing #capital-allocation #building-wealth

The Permanent Capital Allocator Flywheel

ECO

DR Dr. Lester Leong · Gradient Growth

The 7 Rules Old Money Families Use to Keep Wealth for 100+ Years

Dynastic families don’t think about wealth as a portfolio. They think about it as a system designed to outlive everyone in the room.

Mar 31, 2026 · 9 min read · 0 claps paywalled #investing #wealth-management #personal-finance

The 7 Rules Old Money Families Use to Keep Wealth for 100+ Years

ECO SPT

DR Dr. Lester Leong · Gradient Growth

The New Dynasties: How Tech Founders Are Building 200-Year Fortunes

Tech founders are running the old money playbook with modern tools, and it’s working faster than ever

Apr 14, 2026 · 10 min read · 0 claps paywalled #capital-allocation #tech-dynasties #wealth-management

The New Dynasties: How Tech Founders Are Building 200-Year Fortunes

AI HUM

DR Dr. Lester Leong · Gradient Growth

Who Evaluates the Evaluator?

You replaced your flaky eval with an LLM judge. But your judge is a model too: stochastic, position-biased, and verbosity-biased. Here is…

Jun 04, 2026 · 5 min read · 0 claps #large-language-models #ai-engineering #machine-learning

ECO

DR Dr. Lester Leong · Gradient Growth

The 10 Mental Models Behind Billion-Dollar Investments

How elite investors evaluate everything through a small set of repeatable lenses, and why the biggest winners always score high on more…

May 05, 2026 · 10 min read · 0 claps paywalled #investing #mental-models #capital-allocation

The 10 Mental Models Behind Billion-Dollar Investments

ECO SCI

DR Dr. Lester Leong · Gradient Growth

Why Most Fortunes Disappear in Exactly 3 Generations

The math behind dynastic wealth failure, and the families that solved it

Apr 21, 2026 · 9 min read · 0 claps paywalled #wealth-management #investing #personal-finance

Why Most Fortunes Disappear in Exactly 3 Generations

MDA HUM AI MKT SCI TCH

DR Dr. Lester Leong · Gradient Growth

Your LLM Eval Passes. Your Users Are Churning. Both Are True.

How I rebuilt a small Python eval library around the one thing most eval tooling skips: honest statistics.

Jun 13, 2026 · 6 min read · 0 claps #llm-evaluation #ai-engineering #machine-learning

ECO

DR Dr. Lester Leong · Gradient Growth

The Year I Tried to Beat the Market and Found the Edge Hiding in My Own Backyard

What building my own quant research desk taught me about alpha, honesty, and the one lever I could actually control.

Jun 18, 2026 · 5 min read · 0 claps paywalled #investing #finance #quantitative-finance