Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? This week we are revisiting a talk by electrical engineer Ali Hajimiri, where he explains the principles behind wireless energy transfer and shares his far-out vision for...

We don't have to sacrifice our freedom for the sake of technological progress, says social technologist Divya Siddarth. She shares how a group of people helped retrain one of the world's most powerful AI models on a constitution they wrote — and offers a vision of technology that aligns with the...