The summary is:
The speaker tells his personal story of how he went from a school dropout to a psychology student and a memory trainer. He demonstrates a visualization technique to help the audience memorize the past 10 US presidents. He explains that memorizing is not only useful, but also fun and empowering. He encourages the audience to experiment with different methods of learning and to develop the skill of experimentation. He argues that learning how to learn is something that everyone should know and practice.
Here are the key facts extracted from the text:
1. The speaker made the audience memorize 10 words and then 10 presidents of the USA using visualization.
2. The speaker flunked grade twice and then went to California to work as a bagger.
3. The speaker discovered that he loved learning psychology and experimented with different methods of reading and memorizing text.
4. The speaker works for a company called Remind that teaches people the science and art of learning.
5. The speaker organizes the Dutch national memory championships for high schoolers.
6. The speaker uses the check, experience and experiment steps to improve his learning process.
7. The speaker encourages the audience to experiment, learn and teach the art of learning.
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