
Kelsey Piper
Contributing editor
Latest articles by Kelsey Piper


New market research finds Americans divided on meat alternatives — and consumers elsewhere hungry for them.


In two new books, 45 AI experts grapple with a field on the verge of something big, and possibly scary.

A new paper on the NAACP and its funders has lessons for philanthropy and activism.


Eight highlights from Bill Gates’s Reddit AMA.


A charity focused on cost-effective giving is shifting its sights toward influencing policy.


To test malaria vaccines, researchers give volunteers malaria. I asked one volunteer what it’s like.


Recruiting companies offering one easy fix to gender disparities are getting taken way too seriously.


This research into viruses could help us understand pandemics better - or it could cause one.


An impressive new language AI writes product reviews and news articles. Its creators are worried about misuse.


Does it replace existing programs? How much should it be? And who pays for it?