Hockey Sticks

What does a hockey stick shaped graph mean? Sometimes it means you are seeing on many time scales.

Temperatures going back many years:


Now compare to this:


Look back at the other one and see all the hockey sticks.


Now look at this shorter time frame, more hockey sticks:

When you see a hockey stick blade, you can also think of positive feedback. Is it sustainable? There are a number of cases we can look at where it is arguably not.

“When the decadal oscillations synchronise and the coupling increases, then the system destroys the synchronization and jumps to a new very different (unknown) state.” – Tomas Milanovic.

Think of what Milanovic said and consider a system shuddering prior to its break up. A new system or regime takes its place.


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