Five Best Ideas of the Day: September 28, 2018

Multigenerational households are becoming the new normal.

Mandira Banerjee at the University of Michigan
The bacteria living in your nose can make your cold better or worse.

Joshua Barney at the University of Virginia
Google is using AI to predict floods in India.

James Vincent at the Verge
This online therapy program could cure your insomnia.

Kristin Samuelson at Northwestern University
We’re badly underestimating the value of our public lands.

Christopher Ketcham in the New Republic