Version 1.2. The text was revised in 2013 on the basis of new information.
 

From an unearthly distance, earth seems blue - but not where we stand. Life seems predictable because we live backwards, repeating the past instead of living the present. Sometimes the future surprises - and sometimes you surprise yourself. This novel tells of the contact - and collision - of a handful of human lives with an alien intelligence, in the sudden flash of an otherworldly green light.