Keynote Speech Structure Builder

I need to deliver a keynote speech on [topic] at [event type] for an audience of [audience description]. The speech should be [duration] long. My main message is [core message]. I want to share [number] key insights. My speaking style is [formal/conversational/inspirational]. Please create a complete keynote structure including: attention-grabbing opening, thesis statement, main points with supporting stories/data, transitions between sections, call to action, and memorable closing. Include speaker notes and timing for each section.