Haha, a never-ending hell for the kids you leave behind when you die. Love it. It should email them monthly messages, too. "Your dead parents data is STILL SAFE."
I'd include in that email an estimate of how much money has been spent on the preservation campaign so far.
"If your ancestor hadn't decided to dedicate X dollars (inflation adjusted Y dollars for current year) to this project you would have inherited calculateInheritant(tauntEmailRecipient, currentYear, familyTree, preferredCurrencyDenomination). PS - please reply to this email with contact information for any new descendants. If email is going out of style as a communication protocol, please reply with a program that, when executed, will take from standard in a filename that contains a message, and as a second parameter a contact address. Attached to this email you'll find a project spec describing this program more rigorously.
"If your ancestor hadn't decided to dedicate X dollars (inflation adjusted Y dollars for current year) to this project you would have inherited calculateInheritant(tauntEmailRecipient, currentYear, familyTree, preferredCurrencyDenomination). PS - please reply to this email with contact information for any new descendants. If email is going out of style as a communication protocol, please reply with a program that, when executed, will take from standard in a filename that contains a message, and as a second parameter a contact address. Attached to this email you'll find a project spec describing this program more rigorously.