However, there are a few caveats:
* The topic: If the topic is something you're already very familiar with, you may not need any research at all. But if it's a topic you know little about, you might need to do some quick mental brainstorming to gather relevant points.
* The context: If the impromptu speech is part of a larger event with a specific theme or audience, you might want to do some quick research to understand the context and tailor your speech accordingly.
* The level of detail: Even if you're not doing in-depth research, it's helpful to have a few key points or stories in mind that you can draw on to make your speech more engaging.
Here's what impromptu speeches rely on more heavily than research:
* Your knowledge: The foundation of a good impromptu speech is your existing knowledge and understanding of the topic.
* Your ability to think on your feet: You need to be able to formulate ideas and connect them in a coherent way in real-time.
* Your storytelling skills: A compelling story can go a long way in an impromptu speech.
In summary, while impromptu speeches don't require a lot of research, they do benefit from some mental preparation and the ability to think creatively and engage your audience.