In the upper graph we assume the same sequence of events except for one crucial difference: that in 1991, when Liberty first became available, aguardianangel told you to cash completely out of TCI and put all your money into Liberty for three years.
After Robert Kennedy was killed in 1968, Ethel asked each of her older children to act as a sort of guardianangel over a younger one: Michael was assigned Rory, born six months after their father died, and they spoke almost daily.