AI has sparked big questions around safety and ethics. OpenAI CEO Sam Altman shares his vision for AI's future and why he thinks the rewards outweigh the risks, live onstage with TED's Chris Anderson.

Who will you be in 10 years? In 20 years? Envisioning how you will evolve is very hard. This hour, TED speakers share ideas on how to better plan for the future, while allowing for the unexpected.

TED Talks have become very influential over the years. However, it all started somewhere. These were some of the very first individuals to give a TED Talk.