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Investment Philosophy

Investment Philosophy 

Why I’m Against Optimisation

03/04/202203/04/2022 Haydn Martin Portfolio Construction, Principles, Return, Statistical Inference

Whenever I’m browsing investing and personal finance content I see a word that makes me sick: “Optimisation” We are told

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Investment Philosophy Personal Finance 

What’s the Point of Investing?

30/08/202130/08/2021 Haydn Martin Consumption, Inter-temporal, Interest Rates

Why do we do the things we do? What’s the point? What’s the purpose? There are many ways to go

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Investment Philosophy 

Why We Don’t Know Anything When It Comes to Investing

13/04/202117/06/2021 Haydn Martin Deduction, Epistemology, Induction, Principles, Uncertainty

I’ve talked a bit about how to arrive at ideas. We have come across two techniques: induction, in which one

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Investment Philosophy Probability and Statistics 

A Quick Post on Deduction

01/03/202116/06/2021 Haydn Martin Deduction, Induction

As we discovered in a previous post, inductive reasoning has its flaws. Mostly these arise because we are vulnerable to

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Investment Philosophy Investment Vehicles 

How to Invest in Memes

31/01/202121/11/2021 Haydn Martin Bubbles, Investment Rules, Long-term, Meme Assets, Stonks

Over the last year or so we have seen an unprecedented rise in what I would describe as meme investing,

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Investment Philosophy The Fundamentals 

PPP 1: Thinking (Very) Long-Term

04/09/202014/06/2022 Haydn Martin 0 Comments Long-term, Principles, Second-order effects

In Principles of Perpetual Prudence, I discussed my principles for Lifetime Investing. This article expanded on a branch first mentioned

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Investment Philosophy Probability and Statistics Risk 

Shit Happens

14/07/202014/06/2022 Haydn Martin 0 Comments Ergodicity, Fluctuation risk, Strategy

When I was 18 I learned an investing lesson that most still don’t grasp. As a fresh-faced 18-year-old, I was

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Investment Philosophy The Fundamentals 

What is Lifetime Investing?

26/06/202014/06/2022 Haydn Martin 0 Comments Long-term, Principles

This blog is mainly about lifetime investing. But what is lifetime investing exactly? Simply put, it’s the mechanism by which

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Investment Philosophy Risk The Fundamentals 

The Principles of Perpetual Prudence

19/06/202014/06/2022 Haydn Martin 0 Comments Big picture, Downside, Long-term

I don’t have all the answers. What I do have is a way of thinking. A framework from which decisions can

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Investment Philosophy The Fundamentals 

Perpetual Prudence: The Solution to Lifetime Investing

13/06/202014/06/2022 Haydn Martin 2 Comments ETF, Principles

For the last 10 years or so I have been searching for the answer to lifetime investing. Despite all the

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