I am just confused by one word... "life". The confusion stems from the several uses of the word “life” in English. There are at least three usages as exemplified by the following questions: 1) Is there life on Mars? 2) Is there life in this organism? 3) Is life worth living? My personal thinking is that "life" predates any physical manifestations thereof. In short, energy has been around for ever, albeit in various forms. What would your definition of "life" be?