I understand why they do that, since it's supposed to be an encouragement. But there are two aspects of the Nobel prize: reputation and prize money. If they wo

I understand why they do that, since it's supposed to be an encouragement. But there are two aspects of the Nobel prize: reputation and prize money. If they would change the rules to make exceptions for shared discoveries, it won't dilute the reputation boost for the scientists in question in the slightest, and if they give the money to the surviving winners that problem is solved too.