And I chose Austin partly because I just love Austin -- (applause) -- but also because there are some terrific things going on in this area, in communities like Manor.

WHITEHOUSE: President Obama Speaks at Manor New Technology High School

There are a whole range of things that may work, in some cases may not work, but we've got to try some new things because right now too many of our kids are stuck, and we can't afford to lose them.

WHITEHOUSE: Online Town Hall

Yes, I rely on the Macs for some things, but that is mostly because the Apple ecosystem, especially for media apps, works so much better than what Microsoft offers.

FORBES: Happy 10th Birthday, Windows XP! Why We Still Love You

There are some good things that governments probably do, but we cannot tell whether these are worthwhile because they take place outside the realm of voluntary cooperation.

FORBES: No Taxation

But some recent social science research reveals a more likely and complex explanation: People do things because people who look and talk like them or share the same background do those things.

CNN: How to have more Sheryl Sandbergs

But it's just so hard to predict because there are some individuals who react to the news or they react to things that are happening in their lives and see that is the moment to act.

NPR: The Tipping Point: When Hate Turns To Violence