Hannah Furfaro


Hannah Furfaro was a news writer at Spectrum from 2017 to 2019. Before that, Hannah was an investigative reporting fellow at Columbia University. She previously worked at The Wall Street Journal, The Fresno Bee and the Associated Press. Her work has also appeared in The Guardian and Audubon Magazine.

Hannah has an M.A. in science and health journalism from Columbia University.

From this contributor

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Research image of oxytocin receptors in rats.

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23 September 2025 | 2 min read
Book cover of What Is Intelligence.

‘What Is Intelligence?’: An excerpt

In his new book, published today, Blaise Agüera y Arcas examines the fundamental aspects of intelligence in biological and artificial systems. In this excerpt from Chapter 4, he examines temporal difference, a reinforcement learning algorithm.

By Blaise Agüera y Arcas
23 September 2025 | 9 min read
Eraser sitting on a stack of papers.

Alzheimer’s paper retracted over apparent image duplication

The editors of Neurobiology of Disease, which published the paper, also questioned how the study’s experimental protocols received ethical approval.

By Lauren Schneider
23 September 2025 | 4 min read

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