Comparison of a detail of the old and new logo of AllAboutLean. In the old logo, the gear would not have worked, because all the teeth (cogs) are of different size. Easy for the design, but just not accurate. In the new logo the gears within the brain are now technically correct fully working gears. The central hole is also the same size. Not a big thing, but as a German Engineer I strive for perfection. Also, I want to emphasize that at no point never ever did I have three gears interlocking with each other as in the image on the right. While you see this frequently in other logos, these gears cannot move since they block themselves. I know, I am a nerd. Copyright Christoph Roser.