Meet the personas.

What works

• Makes the connection nobody else in the room was going to make.
• A wide vocabulary keeps 45 seconds from sounding like one long note.
• The surprise is the part people repeat afterwards.

What it costs

• You are the only one who saw the rope. Every leap costs the audience the thread.
• Sentences get abandoned mid-clause because the next idea arrived first.
• The ending has nothing to do with the beginning, so nothing lands as a point.

What works

• Nothing is rushed, so every word that survives is one you meant.
• Silence makes a room lean in. Used on purpose it is the strongest thing in the kit.
• Sounds considered rather than rehearsed.

What it costs

• Dead air is the one thing an audience cannot do anything with.
• A thought that trails off gets remembered as a thought you never had.
• Low energy reads as low conviction, even when you are certain.

What works

• You are visibly thinking, and audiences trust that more than a polished take.
• Self-correcting means the version that survives is the accurate one.
• It sounds like a conversation instead of a recital.

What it costs

• 45 seconds is not long enough to draft out loud. The restarts eat the clock.
• The audience hears the crossed-out sentences too, and remembers the mess rather than the fix.
• Every restart arrives with a stumble or an “um” attached, and both are counted.

What works

• Covers enormous ground. You finish the thought before the timer does.
• The energy is contagious and nobody is ever bored.
• No gap to fill, so nothing gets filled with “um”.

What it costs

• The audience is one sentence behind for the whole 45 seconds.
• Consonants collapse. Miss one clause and you have missed the next three.
• Reads as panicked even when you are not. Pace is how people guess at nerves.

What works

• The room stops. That is not nothing.
• Emphasis makes structure audible. People can hear which part mattered.
• Pitch range plus a deliberate pause is what “commanding” actually is, once measured.

What it costs

• If every sentence is the point, none of them is.
• Weight is exhausting past about a minute.
• The pause that lands the first three times starts to feel like waiting.