Dewi's Sleep System

Practical interventions that fixed my sleep

Nov 8, 2025 • Dewi Erwan

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August 2024

Designing a reliable morning routine

Every January as we consider our New Year’s Intentions, there’s a spike in global search traffic for “morning routine”, and like clockwork, our…

Aug 19, 2024 • Dewi Erwan

How big things get done

Megaprojects: temporary endeavours (i.e.

Aug 11, 2024 • Dewi Erwan

April 2024

How long would it take to fly from London to North Wales in a flying car?

I grew up on an island in Anglesey, North Wales, and most of my family is still there.

Apr 24, 2024 • Dewi Erwan

March 2024

My experience fixing my gut

From about 2019 to 2023, I thought I was allergic to gluten.

Mar 3, 2024 • Dewi Erwan

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Bluetooth

Why isn't it better?

Mar 3, 2024 • Dewi Erwan

April 2023

How did the chip in my laptop get made?

The insane complexity of semiconductor manufacturing.

Apr 16, 2023 • Dewi Erwan

May 2020

My "ideological" journey: from nationalism to altruism

I’ve been alive for 23 years, and in that short time I’ve had some pretty hefty shifts in my thinking about the world.

May 30, 2020 • Dewi Erwan

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