5 more things we learned at SXSW

Emma Hinchliffe | USAToday

With so much happening at SXSW, there's a lot to catch up on. As the Interactive portion of the Austin conference winds down, here are five more things to know from the festival:

Jessica Alba, the entrepreneur. The actress best known for movies such as Fantastic Four and Sin City has spent the past several years developing a second career, as founder of the Honest Co. The firm makes non-toxic baby and household products, and has found a large following, in part through social media and Alba's wide reach. Alba told USA TODAY how business compares to Hollywood at SXSW. "Business is really black and white. It either works or it doesn't," she says. "Where Hollywood is a lot more about fluff and a lot more about buzz."

Gender equality in tech? A panel about diversity in the tech industry turned into a model of how hard it can be for women to advance in the field when Google Executive Chairman Eric Schmidt kept interrupting his co-panelist, U.S. Chief Technology Officer and former Google executive Megan Smith, reported The Wall Street Journal. Although Schmidt said the lack of women studying computer science was a "tragedy," he often talked over Smith and interrupted her answers with his own thoughts. An audience member — later identified as the head of Google's "unconscious bias" program — brought up the dynamic during the panel's question-and-answer portion, to much applause. Also see: 'Geek girls are chic' is mantra (and book) for activists.

The Winklevosses' bitcoin world. Cameron and Tyler Winklevoss, best known as the twins who fought with Mark Zuckerberg over ownership of Facebook, predicted that bitcoin will wipe out cash at SXSW. In a panel moderated by USA TODAY's Jefferson Graham, the twins said we're heading toward a "cashless" society. "Cash is going to be killed," Tyler Winklevoss said. "You'll tell your grandkids about the wallet, 'It was this thing made of leather.'"

A non-profit called Not Impossible Labs showed off a copy of a prosthetic arm that it made for a boy in Sudan whose arms had been blown off. It made the arm using a 3-D printer for $100, an act it hopes can be replicated to help other victims. USA TODAY's Ed Baig talked to the founders and checked out the arm.

How to get 7.5 million followers. Be yourself. That's the advice YouTube sensation Michelle Phan gave during a panel about social media authenticity. Along with Lucky Magazine's Eva Chen, Phan spoke about the importance of being yourself online. With 7.5 million followers and 1 billion views, her strategy seems to be working.