Post Category → Humanities

Criticality

I love discovering the correct name for a mental model. For years I was using the metaphor of supersaturated solution to describe a state I now know is called being “critical”:

“In physics we say a system is in a critical state when it is ripe for a phase transition. Consider water turning into ice, or a cloud that is pregnant with rain. Both of these are examples of physical systems in a critical state.

The dynamics of criticality, however, are not very intuitive. Consider the abruptness of freezing water. For an outside observer, there is no difference between cold water and water that is just about to freeze. This is because water that is just about to freeze is still liquid. Yet, microscopically, cold water and water that is about to freeze are not the same.

When close to freezing, water is populated by gazillions of tiny ice crystals, crystals that are so small that water remains liquid. But this is water in a critical state, a state in which any additional freezing will result in these crystals touching each other, generating the solid mesh we know as ice. Yet, the ice crystals that formed during the transition are infinitesimal. They are just the last straw. So, freezing cannot be considered the result of these last crystals. They only represent the instability needed to trigger the transition; the real cause of the transition is the criticality of the state.

But why should anyone outside statistical physics care about criticality?

The reason is that history is full of individual narratives that maybe should be interpreted in terms of critical phenomena.

Did Rosa Parks start the civil rights movement? Or was the movement already running in the minds of those who had been promised equality and were instead handed discrimination? Was the collapse of Lehman Brothers an essential trigger for the Great Recession? Or was the financial system so critical that any disturbance could have made the trick?”

From the 2017 Edge question “WHAT SCIENTIFIC TERM OR CONCEPT OUGHT TO BE MORE WIDELY KNOWN?“

Chaotic Nazi Germany

Something caught my eye in an article on The Logical Fallacies of History:

“Whilst it is true that Owens’ performance was indeed remarkable – he won four gold medals – he by no means spoiled the party for Hitler. The games provided him with the opportunity to showcase the organizational skills of his regime (which actually went against the grain, since Nazi Germany in many ways was run very chaotically).”

This is new to me. The stock cliché is that “Hitler made the trains run on time,” or maybe it was Mussolini?

Hail the Maintainers

I am finally clearing out some old Instapaper articles. One that I really enjoyed was Andrew Russell’s examination of our civilizational obsession with “innovation” at the expense of maintenance and sustainable operability.

This is something we in cloud services learned fairly recently. Features are increasingly table stakes, fundamentals (e.g. availability, supportability, security, privacy, operability, maintainability, etc.) are the crucial differentiators.

Hail the Maintainers