Hardin and Saff have also discovered - and rigorously justified - that this critical value of s is precisely equal to the dimension of the surface to which the points are restricted. In the case of the two-dimensional surface of a bagel, for example, using a value of s greater than or equal to two produces the most uniform distribution of seeds, resulting in the "nearly perfect" poppy-seed bagel. But using a value of s less than two will not spread the seeds evenly.