Martin Cooper changed the world when he pioneered the portable phone, which weighed four pounds at the time. What's next?

From his home in Del Mar, the inventor of the mobile phone, now 96, watches. Of one thing Cooper is certain: The revolution has just begun.

Through his work, social psychologist Jonathan Haidt found that "a majority of parents wish social media apps didn't exist." ...

Jonathan Haidt says it is so difficult for children today to live without technology, but society can make changes so they ...