On Facebook's 10th Birthday, Mark Zuckerberg Reflects on the Long Journey of Creating a Social Media Powerhouse In an exclusive interview with the 'Today' show, Zuckerberg says Facebook remains focused on its next big move.

By Jason Fell

"At launch, we were hoping for 400 or 500 people. Now we're at 100,000 people. So who knows where we're going next."

That's what Mark Zuckerberg told CNBC in a 2004 interview, at age 19, shortly after launching Facebook. It's funny how things change. Fast forward a decade and the social network is now used by 57 percent of all adults and 73 percent of all those ages 12 to 17. It seems like Facebook is more addictive and widely used than ever.

In an exclusive interview this morning with the Today show, Zuckerberg reflected on the long journey of launching a product that changed the way people all over the world interact. (For so much change, it's also funny how some things never change: Zuckerberg wore his signature dark hoodie for the interview.)

"I remember really vividly, you know, having pizza with my friends a day or two after -- I opened up the first version of Facebook at the time I thought, 'You know, someone needs to build a service like this for the world,'" Zuckerberg told the Today show's Savannah Guthrie. "But I just never thought that we'd be the ones to help do it. And I think a lot of what it comes down to is we just cared more."

Related: Why So Many Tech Founders Who Are Jerks Become Insanely Rich and Successful

Make no mistake, though, it hasn't been all smooth sailing for Zuckerberg and his team at Facebook. There have been repeated privacy issues, a rough IPO opening day, issues dealing with the NSA and that nasty rumor about teenagers becoming bored with Facebook and leaving in droves.

"We've just gone through a number of periods where people just didn't believe that we could succeed at what we were trying to do," Zuckerberg said on Today. "I've spent a lot of late nights pacing around my living room with teammates, right, just trying to plot out what our next move can be in order to keep pushing forward on this mission. There's always a next move.

Here is Zuckerberg's interview with Today:

Visit NBCNews.com for breaking news, world news, and news about the economy

Jason Fell

Entrepreneur Staff

VP, Native Content

Jason Fell is the VP of Native Content, managing the Entrepreneur Partner Studio, which creates dynamic and compelling content for our partners. He previously served as Entrepreneur.com's managing editor and as the technology editor prior to that.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Editor's Pick

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Buying / Investing in Business

Big Investors Are Betting on This 'Unlisted' Stock

You can join them as an early-stage investor as this company disrupts a $1.3T market.

Science & Technology

How AI Is Turning High School Students Into the Next Generation of Entrepreneurs

As AI reshapes education, students are turning school problems into products and building the future economy.

Buying / Investing in Business

From a $120M Acquisition to a $1.3T Market

Co-ownership is creating big opportunities for entrepreneurs.

Leadership

My Business Hit $1 Million — Then a $46,000 Mistake Exposed the Biggest Bottleneck to Explosive Growth

How a costly mistake forced me to confront the real barrier to scaling and the changes that unlocked explosive growth beyond $1 million.