It's fascinating how Jobs isn't afraid to pause and wait while he thinks about his answer (07:00, 20:00). He doesn't have that habit most have of babbling to fill dead air. It makes him sound a lot more authentic/less rehearsed.
Of course he rehearsed every keynote. You would be a fool to do any performance without some kind of rehearsal, unless it’s improv.
You can search YouTube for Steve Jobs demo fail for plenty of examples of it not going smoothly. He practiced but he still did live demos and had plenty of opportunities to mess up
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You can search YouTube for Steve Jobs demo fail for plenty of examples of it not going smoothly. He practiced but he still did live demos and had plenty of opportunities to mess up