Agreed. I tried using Gemini's voice interface in their app. It went like this:

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ME: "OK, so, I have a question about the economics of medicine. Uh..." [pauses to gather thoughts to ask question]

GEMINI: "Sure! Medical economics is the field of..."

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And it's aggravated by the fact that all the LLMs love to give you page-long responses before it's your turn to talk again!