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Tuesday, November 10, 2026Nov 10

Trending at SXSW: Mind cloning, off-the-grid messaging

United Therapeutics CEO Martine Rothblatt gives a keynote on AI, Immortality and the Future of Selves during the SXSW Interactive Festival on Saturday, March 14, 2015 in Austin, Texas.  (AP Photo/Jack Plunkett)
United Therapeutics CEO Martine Rothblatt gives a keynote on AI, Immortality and the Future of Selves during the SXSW Interactive Festival on Saturday, March 14, 2015 in Austin, Texas. (AP Photo/Jack Plunkett) United Therapeutics CEO Martine Rothblatt gives a keynote on AI, Immortality and the Future of Selves during the SXSW Interactive Festival on Saturday, March 14, 2015 in Austin, Texas. (AP Photo/Jack Plunkett)

AUSTIN, Texas (AP) – As a plane with a Grumpy Cat flag flew overhead, courtesy of Friskies, the Technorati flooded into panel discussions and happy hour spots at the annual tech festival South by Southwest in Austin, Texas, on Sunday.

Top tech influencers pondered immortality and mind cloning. FireChat, an app that lets smartphone users connect via mobile chat even without a cellular connection, was another hot topic. Here’s a look at the most notable trending topics Sunday at the tech jamboree.

OFF-THE-GRID MOBILE CHAT

No cell service? No problem.

An app called FireChat uses phone signals such as Wi-Fi and Bluetooth to connect to other users’ phones and enable chats without any network connection. The app, created by a San Francisco startup called Open Garden, debuted in 2012 and was a hit last August at the Burning Man festival in Black Rock, Nevada, where cell phone service is scarce.