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in what way does FB "costly signal tech"? a few years ago I was interviewing at tech companies and got the impression that FB was *not* the place you go if you love the art of programming
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Big tech-focused acquisitions (you don't buy Oculus or a solar plane wifi company if you don't at least intend to be a tech company first, milk-the-ads company second). Also stuff like metaverse vision, exploring custom silicon, building an ML lab...
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Replying to and
Other examples include problems running large data centers, all the Big Data stuff, Google's Spanner... big, high-risk infrastructure dev, where there may be little fundamental R&D to do, but a shit ton of systems design, architecture, optimization, and risk taking.
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WordPress is another major piece of PHP-based infrastructure that I think has been somewhat less successful, but still pretty good, at keeping a liberal thing evolving for 20 years.
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