"Bell Labs scientist Thomas K. Landauer (pictured above) determined in 1984 that human beings can retain about 2 bits of memory per second. This holds under all experimental conditions whether the information is visual, verbal, musical, etc."

via Accelerating Future who mention the intriguing
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Innovis Research - PhylloTrees

PhylloTrees: Phyllotactic Patterns for Tree Layout

We explore the use of nature’s phyllotactic patterns to inform the layout of hierarchical data. These naturally occurring patterns provide a non-overlapping, optimal packing when the total number of nodes is not known a priori. PhylloTrees are a family of expandable tree layouts that we developed based on these patterns.