certainly, why bother? :-) In the same vein there was a joke that goes something like this: A professor is giving a lecture and he says: -"In 4 billion year

certainly, why bother? :-) In the same vein there was a joke that goes something like this: A professor is giving a lecture and he says: -"In 4 billion years Andromeda will collide with our galaxy". Somebody in the audience stand up and says: -"Excuse me! did you say 4 billion or 4 million?" -"Four billion" -"Dude... you worried me there for a moment.."