Our pseudonymous friend at Wonderoom is up to her old tricks, posting one of her fabulous posts. This one is about breathing, banded iron, clocks, and time:

And so I contemplate a hunk of banded iron formation. Glimpsing a world before conscious thought, before much of anything. A too large moon and a mass of algae. Pre-Eden. A world full of so much possibility that it is empty of almost everything. Recorded in bands of alternating hematite and chert. Red and black, formed because the oxygen released by these primeval algae was bonding with iron dissolved in the oceans and forming layers of hematite all over the world. Oscillations of rock, billions of years old.

She posts fairly infrequently, but her posts are always worth reading. If you haven’t put Wonderoom on your RSS feed/ bookmarks page yet, you should.