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booksSunday, July 19, 2026

Galileo's notes found; AI consciousness debate

Today's book world is split between a thrilling archival discovery and a heavy philosophical question. A historian found Galileo's handwritten notes in a 16th-century astronomy text, while a Guardian piece with three outlets covering it asks whether we need a plan for potentially conscious AI. Also, authors share their beach reads, and Choose Your Own Adventure gets a Halloween entry.

Sources
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Archival find

A discovery in Florence offers a fresh window into how Galileo built his heliocentric model.

#01scim.agJul 19
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Galileo’s handwritten notes found in ancient astronomy text

Historian Ivan Malara found Galileo's handwritten notes in a copy of Ptolemy's The Almagest at the National Central Library of Florence. The marginalia, including a Psalm transcription, show how Galileo worked through the geocentric model before developing his heliocentric one.

4 min readRead original

AI and ethics

The AI consciousness question gets a book-adjacent treatment, with three outlets covering the same Guardian essay today.

#02www.theguardian.comJul 19
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Could AI be conscious?

William MacAskill and Lucius Caviola argue in the Guardian that AI consciousness is possible and we need an ethical plan now. Three outlets are covering it today, making it the most-discussed piece in this roundup.

Summer reading

Two pieces offer practical book recommendations for the beach and for young readers.

Also today16

More roundups that day

Galileo's notes found; AI consciousness debate | Books Roundup · 19 Jul