Hover over a node to:

• show title of the corresponding post on the graph
• read a preview of the post, in this space
• hovered node has yellow border.

Click a node to:

• show the post in the space to the right
• show author's bio, in this space (click author's name in post to restore if needed)
• emphasize links from that node to other nodes (links among other nodes are faded)
• clicked node has green border.

Hover over the edges for an explanation, in this space.