Innovations in digital advertising and consumers’ willingness to share their data have made the growth of free and cheap online services possible.
Techniques that can soften or erase memories raise many ethical questions.
Making human-friendly robots is a pressing challenge and a big opportunity.
Mobile phones are great sources of data—but we must be careful about privacy.
Portable diagnostic tools could offer a better outlook for TB patients.
Strong regulations and improved public disclosure are needed.
If China wants an innovation-based economy, it will need to make political and institutional changes.
Look out, Periscope and Meerkat: Facebook’s latest move shows it is taking live-streaming very seriously.
The best of the rest from the Physics arXiv this week.
When DARPA ran a competition to find Twitter bots designed to influence online debates, it inspired a new generation of anti-bot strategies.