Reletter
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A systems-driven newsletter from a data engineer and cybersecurity thinker, decoding complex data, technology, and business trends into actionable insight.

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Substack
PricingOnly free issuesPublishesDaily
Issues215Founded2 years agoLast Issue5 days ago
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Artwork for Lights On by Farida

Latest Issues

The Tower Has No Stairs

“Happiness is not a station you arrive at, but a manner of traveling.”

— Margaret Lee Runbeck

A diagnosis of why conspicuous leisure is growing, what changed in its economics, and the signals worth watching before the pressure it is bui...

5 days ago
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The Pentest Nobody Ordered: The $130 Million Randomness Failure

In twenty-five minutes, 594 bitcoin left five hundred wallets that hadn’t moved in years. Bitcoin wasn’t hacked, a wallet lied about its randomness. Every security system rests on an assumption nobody re-checks. This is what happens when th...

7 days ago
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Why Companies Fail: The 4 Signs of Institutional Deafness

If this made you feel seen, challenged, or called you’re not alone. Lights On is for those who crave more than noise, trends, and surface takes. Your presence here means something. Subscribe and stay with the signal.

Join the newsletter

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10 days ago
36
15

What Have You Already Built That AI Just Made Valuable?

If this made you feel seen, challenged, or called you’re not alone. Lights On is for those who crave more than noise, trends, and surface takes. Your presence here means something. Subscribe and stay with the signal.

Join the newsletter

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12 days ago
18
1

Running the Wrong Version of Your Business? The Hidden Cost of Backward Compatibility

If this made you feel seen, challenged, or called you’re not alone. Lights On is for those who crave more than noise, trends, and surface takes. Your presence here means something. Subscribe and stay with the signal.

Join the newsletter

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14 days ago
10

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Authors

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  • Farida Khalaf

    I write about systems, incentives, and entropy in modern organizations. Most failures are not operational, they are structural misreadings of reality.

  • Alex Randall Kittredge

    Strategy consultant to technical founders; built my career across a $20B family office, fintech startup, intelligence work, and my own firm. I write ARK Strategy: portfolio careers for the post-AI economy. Careers aren't ladders — they're portfolios.

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