I think It was mainly inspired by prezi and impress.js. I did several presentations using prezi. But that was after I decided to build something that uses circles as the main shape in the layout. I don’t know precisely why my initial fixation with circular shapes :). Maybe the fact that I perceive that many UI libraries and frameworks tend to use square layouts. I totally agree with that because I think is the most efficient way to organize a big amount of content and it is very flexible as well. Having that in mind I thought that maybe there were enough room for another point of view. Even if this idea doesn’t fit for all cases and uses, it would fit on other scenarios. Finally the zooming navigation was a way for me to resolve the idea of using a 100% circular layout.