I like this idea. I was really shy in my dating days and it was hard for me to approach girls I liked. But maybe I could have sent a love note if it only had a

I like this idea. I was really shy in my dating days and it was hard for me to approach girls I liked. But maybe I could have sent a love note if it only had a 10% chance of going through, and best of all if she'd know that I was assuming it hadn't gotten through. (Assume this type of email was in widespread use and people understood it.) In technical terms, there is in a certain branch of science the concept of "common knowledge". Something is common knowledge between us if I know it, you know it, I know you know, you know I know, I know you know I know, and so on to infinity. It's a powerful concept with many surprising implications. Basically you aim to sell a service to let some knowledge be shared without it becoming common knowledge. The main problem I see is that it doesn't work - it doesn't achieve that goal. The problem is that the most likely outcome of your low-probability email is that nothing happens. No mail is delivered, no knowledge is shared. This is not providing any value. I don't see how even in theory to provide knowledge transfer without that becoming common knowledge. If you could come up with a way, it might well be worth paying for.