George Packer

For 20 years, my mother, my sister and I had seldom spoken of my father. If he happened to come up in conversation, pain and embarrassment entered the room and stayed until he disappeared back into the silence with which we all felt more at ease.

In the many-mansioned house of Alternate History, I occupy a small corner. The trio of what-ifs I chronicled in 'Then Everything Changed' all begin with tiny, highly plausible twists of fate that lead to hugely consequential shifts in history.