text: Say instead of surveying someone you have never met, you survey someone that you have know for your whole life. You ask them some questions on if you should play football, not mentioning your condition. Since this person knows you very well, they already know about your condition and say you should not play. You could get extremely hurt and maybe even paralyzed. So you take their advice and you don't play. Then in the next week you get an email from your doctor. It reads as if they had found a cure for your condition and if you take medicine, in the next month, you will be back to normal.