“The Northern Lights have seen queer sights,
But the queerest they ever did see
Was that night on the marge of Lake Lebarge
I cremated Sam McGee.”
– Robert W. Service, 1907
The Northern Lights have seen many queer sights in the century-plus since the Bard of the Yukon published “The Cremation of Sam McGee.” But few have been stranger than the emergence of social media as a potent, some would say overwhelming, force in political systems around the world.