finite-time singularity

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Faster Than Exponential: Can You See a Crash Coming? Faster Than Exponential: Can You See a Crash Coming?
8 min read Keywords:  Sornette, log-periodic power law, bubbles, finite-time singularity, dragon kings, black swans, crash prediction, critical points

The last essay said big cascades are built in and the trigger tells you nothing. Didier Sornette disagrees, at least about the biggest ones. He argues a bubble grows faster than exponentially toward a finite-time singularity, leaves a telltale wobble on the way up, and that this makes some crashes partly foreseeable. This is the optimistic case, and its limits.