Mathematicians like to describe optimal packing configurations for various shapes. How do you arrange oranges so you can get the largest number in a given volume? What about M&Ms? What about objects in higher dimensional spaces...?
It might be possible to create a super economy section where a cabin with two columns of 3 abreast seating becomes a 3 and 4 abreast configuration ... effectively increasing passenger capacity by a sixth.
Other simpler schemes have been thought about - I'm aware of a proposal where a section for people under 5'4 would offer reduced seat prices. The problem was the improved density didn't lower ticket prices enough to attract customers.
This theme park looks like it’s constantly under construction. A fantasy for almost every young boy (and some adults), this park caters to our hidden desires to play in a larger-than-life sandbox with larger-than-life toys. Images of rambunctious eleven-year-olds at the helm of a 40-ton dump truck immediately come to mind, visions of "kill-dozers" (sentient bulldozers, first dreamed up by Theodore Sturgeon in 1944) spreading destruction everywhere... This theme park's reality, however, turns out to be a lot tamer:
Dr. Rosique and colleagues note that their procedure provides the best results when the planned fat transfer is less than about one-half liter. They also emphasize that the cosmetic outcomes aren’t determined by the amount of fat grafted, but rather by the plastic surgeon’s combining careful surgical technique and aesthetic judgment. They conclude, “A good result does not depend on a lot of fat infiltration, but in a harmonious way of combining the elimination of fat by liposuction and fat grafting for buttocks sculpting, even with lasting results