Below is a short video of a 100 square metre space with packing increasing from 1 person per square metre to 10 people per square metre. This serves to illustrate how the crowd may look in low risk and high risk situations.
The word comes from the Greek euangelion, or good news. The gospel was considered the good news of the coming Kingdom of Messiah, and of redemption through the life and death and resurrection of Jesus, the central Christian message.
And the fact that it's suddenly trendy is a good thing for aging. Headlines are no longer referring to gray as in, well, gray -- a word normally associated with dullness, dreariness, sadness and gloom. It's a fashion statement, whether natural or boxed, and its a badge of beauty rather than a dreaded part of aging.