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Interesting read: There's a break in the rock layers in many places worldwide, ending 700 million years ago. One hypothesis: an ice age with enough glacial activity to scour the crust worldwide. As it turns out, they've found signs of a massive surge in rocks being recycled through volcanoes around that time...

latimes.com/science/sciencenow

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Wandering Shop

The Wandering Shop is a Mastodon instance initially geared for the science fiction and fantasy community but open to anyone. We want our 'local' timeline to have the feel of a coffee shop at a good convention: tables full of friendly conversation on a wide variety of topics. We welcome everyone who wants to participate, so long as you're willing to abide by our code of conduct.