I loved Blindsight (the name of the book is not Blindside) but that was one of the most ridiculous paragraphs I’ve ever read.

The natural world is filled with right angles. Many rocks erode into perfect right angles because of their cleave points. Saplings grow at right angles to the ground. Branches of older trees are sometimes at perfect right angles to the trunk.

Anyone who has gone on a hike sees right angles everywhere. Vampires couldn’t walk a kilometer without a seizure from naturally occuring right angles.