They have the whole vacation to find the solution, and whoever can solve it will prove himself or herself to be the most outstanding mathematician in a class of students already outstanding by virtue simply of being good enough to get to MIT. ..... Remond-Besuchet, C., Noel, M-P., Seron, X., Thioux, M., Brun, M., & Aspe, X. Selective preservation of exceptional arithmetical knowledge in a demented patient. Mathematical Cognition, 1998. Jackson, M. & Warrington, E.K., ...