Facial expressions are controlled by several brain regions working together. Different areas encode facial gestures with different scales, from fast changing signals to slow, stable ones. This timing hierarchy may explain how facial expressions stay socially meaningful and well coordinated.

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LinkFewer nodes, ‘mo problemsWe'd noticed that our storage nodes were scaling up and down frequently; sometimes tens of times per hour. This churn was hurting cache effectiveness and pushing more reads to cloud storage, which drove up latency. We were also bumping up against node-level network throttling due to the way our cloud providers allocate network bandwidth.

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formatting/printing code from Barry’s example.

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