Assertion certainty 4/5 debate potential 1/5

Cal Henderson built Flickr's core architecture during his daily train commutes

Stewart Butterfield · Slack & Flickr: Stewart Butterfield · Jul 30, 2018 · at 15:45

Stewart Butterfield (co-founder of Flickr) describes how Cal Henderson built the backend systems that powered Flickr.

0:00 / 0:11exact quote · 11.8s
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“On the train to London every day, two hours in, two hours out, he wrote almost all of the guts of Flickr the way to upload the photos and to process them, to store them, display them.”

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