Foreshocks (Mind the Gray Cygnets)
We recently reviewed the events of 2015 to try to spot gray cygnets. A cygnet, if you aren’t up on your obscure animal names, is a baby swan, and a “black swan” is a high-impact, unforeseen event. So a gray cygnet is a foreshock, a weak signal, of potential events to come, neither blatantly obvious…
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