De Freitas, Julian, Zeliha Oğuz Uğuralp, and Ahmet Kaan Uğuralp. "Emotional Manipulation by AI Companions." Harvard Business School Working Paper, No. 26-005, August 2025. (Revised October 2025.) ...

Humans have been studying and playing with light for millennia — from the ancient civilizations using rock crystals to magnify objects and focus sunlight to ignite fires, to Galileo who sparked the ...