re - What an incredibly stupid statement in light of the questioners obvious state knowledge. - Not at all. I already explained what seeing was. i.e. a physiolocical sensation.

In case that wasn't exactly what they were looking for then the quantum answer was more detailed. Seemed to me that they were wondering if ther was suych thing as light - i.e. "Just because we see something doesn't mean it exists." I don't automatially assume someone is stupid or ignorant due to the way thy write or the way they ask a question.

The next time you are unable to understand why I wrote something then simply ask. I'll be glad to explain it to you.If you have a question then ask.