Uncovering and explaining how our digital world is changing — and changing us.

What’s next for former Twitter CEO Dick Costolo, who stepped down in July?

In an interview with Kara Swisher on the latest episode of “Re/code Decode,” Costolo said he’s already got the wheels turning on a new company that will bring software into an under-technologized area.

“I don’t want to do something that I feel like I’ve done before,” he said. “I want to do something in a different space.”

Costolo also opined on his replacement at Twitter, Jack Dorsey; the appeal of HBO’s “Silicon Valley,” on which he has served as a consultant; and the continuing problem of gender diversity for many tech companies, including Twitter, and why progress seems to happen at such a glacial pace.

“A lot of men pay lip service to diversity without really doing anything about it,” Costolo said. “The real work is in developing female leaders inside these companies.”

Later in the show, on “Too Embarrassed to Ask,” The Verge’s Lauren Goode wheeled in to talk with Kara about so-called “hoverboards,” those weird but buzzy Segway-ish scooters you may have seen if you live in a big city. You can tweet your tech-related questions with the hashtag #TETA at @KaraSwisher, @LaurenGoode or @Recode.

And we’re thrilled to remind you that “Re/code Decode” is now twice a week. If you missed it last Thursday, now is the time to listen to Peter Kafka’s fascinating interview with CollegeHumor co-founder Ricky Van Veen, the first in a series of new weekly interviews with media experts recorded in New York City. This coming Thursday, Peter will be talking to Brian Rolapp, the powerful but under-the-radar digital boss of the NFL.

And if you like what you hear on “Re/code Decode,” you should check out “Re/code Replay,” an archive of audio content from our events and interviews by Kara Swisher, Walt Mossberg, Peter Kafka, Ina Fried and more.

Every episode of both shows is available in two places: On the Re/code Radio homepage and on Apple iTunes (here for “Re/code Decode” and here for “Re/code Replay”).

You can follow @Recode on Twitter for the latest on upcoming guests.

If you like what we’re doing, please write a review on iTunes — and, if you don’t, just strafe Kara on Twitter. You can also suggest guests for the show there and we’ll do our level best to nab them for a Red Chair interview.