From the article The Efficiency-Destroying Magic of Tidying Up by Florent Crivello:
Indeed, that love of order is above all else about appearances. Streets arranged in grids, people waiting in clean lines, cars running at the same speed… But everything that looks good doesn’t necessarily work well. In fact, those two traits are opposed more often than not: efficiency tends to look messy, and good looks tend to be inefficient.
Our tendency to use straight lines in design, in many instances, does give us a false sense of efficiency. This tweet by Joe Liss gives a good example:
When computers design things, they look very different.
— Jo Liss (@jo_liss) December 8, 2015
Tensile structure before/after topological optimization: pic.twitter.com/dazNjLr92C