An ancient analogy for time and why it endures.
Read MoreThe river of time
history of ideas
Visualizing narrative structure
A common way we make sense of stories is by visualizing their structure.
Read MoreNumbers as names
It may not be the most typical use of numbers, but it's certainly a pervasive one.
Read MoreThe ever-evolving tree diagram
How has the tree diagram evolved?
Read MoreDarwin's architect metaphor
Darwin's "architect metaphor" blends elements of his earlier metaphors for evolution.
Read MoreTime's forelock
Why did Time have a forelock?
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