[grumple]

Lots of effort to arrive at the wrong answer!

An optimal pb + b sandwich must contain not just circle pieces, but pie slices of circular slices at well. All those gaps left by the circles could be filled with little fractions of circles.

[h2odragon]

Bah. no 2 dimensional model can be taken seriously here, the problem is 3d and therefore much more complicated. insert $500k grant proposal