This formulation gave ris
This formulation gave rise to the "magical gravel pit" analogy and is the subject of much scholarship by John Chipman Grey. This formulation carves out an exception as between two charities, and gives rise to the "Rockefeller clause." Many modern courts disfavor this rule and instead take the "wait and see" approach. Common pitfalls arising from this rule include the fertile octogenarian and the unborn widow. For 10 points, name this rule that mandates that a future interest must vest, if at all, not later than twenty-one years after some life in being at the creation of the interest.
This formulation gave rise to the "magical gravel pit" analogy and is the subject of much scholarship by John Chipman Grey.
rule against perpetuities [or RAP]