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Hidden Brain - Christmas

Hidden Brain - Christmas

Why do we give? Can we do it better?

Education·Launched Dec 2015·0 upvotes·overcast.fm

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ALIVEverified Jul 10, 2026 · HTTP 200

CohortClass of 2015

What it is

Why do we give? Can we do it better?

HTTP liveness

9 probes since Jun 16

Jun 16Jul 10

AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub

Jun 16, 2026
First probe — live
Alive · 200 OK

Discussion 0 comments

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Upvotes

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Press

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Tags

consumers free researchers

Pulse Indexobserved activity

9 probes0 pressGitHub –Tranco –

Not enough observed signals for a Pulse Index (needs 2+ signal families).

Cohort survival · Class of 2015weekly

12,940 products launched in 2015 · 100% still active

12,899 active41 sunset

Still active

100%

Median lifespan

4.9y