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.
Well, we have good news and bad news. The good news is that there are some unexpected shortcuts that can make a person popular, which maybe isn't surprising, since the human brain works in some pretty freaky ways. The bad news is that they're just as stupid and arbitrary as the ones you already knew.