Yo, new app. Yo, tech bubble.

The Nasdaq is sliding and there’s lots of hand-wringing over the tech sector.

In this first episode with new host David Brancaccio, we take a tour of our new digs in New York City for a look at the areas booming tech scene

The stock tanked 11 percent yesterday, and a technology glitch marred its first day of trading Friday. Some look at the disappointing debut and wonder if something's amiss generally in the tech sector.

Are we in another one? Who knows. The real question may be why more investors aren't asking questions.