Alexandria, March 415 CE.

As Christian mobs gather in the streets, the philosopher and mathematician Hypatia writes one final letter to her former student, Synesius of Cyrene—now a Christian bishop.

In her words: a farewell to the Library, reflections on the twilight of classical thought, and a haunting question about whether ideas can survive the death of those who carry them.

A meditation on intellectual courage in the face of fanaticism.

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About Thresholds of Thought

What if we could hear the conversations philosophy never recorded? The doubts philosophers never confessed? The moments that shaped ideas but left no trace?

Each episode explores these hidden hinges of intellectual history through imagined-but-plausible dialogues, letters, and confessions—rigorously researched, philosophically grounded, and designed to honor both historical context and human complexity.

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Production & Transparency

This series combines human philosophical direction (Dr. David Calvo Vélez) with AI creative tools: Claude (script), ElevenLabs (voice), Suno (music), Adobe Firefly (sound), Midjourney (cover art).

Every episode is human-curated, edited, and quality-controlled. Not automated content—AI-augmented philosophical storytelling where technology serves a human creative vision.

Final production: David Calvo Vélez in Audacity.

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Contact: david.calvo@gmail.com