It’s easy for your audience to forget parts of your speech, especially if it’s a lengthy one. Sometimes the main point gets lost in the details.
Getting your audience to remember and care about all of your points is usually impossible (unless there are few, like 3 points with no subpoints).
So you need to prioritize.
You have to choose the argument that is the most fundamental to your position, and push on that the hardest.
With that in mind, the easiest way to get your audience to remember your important point is to tell them quite clearly that’s what you want them to remember. It’s really that simple.
After you’ve explained your primary point, say, “if you remember nothing else from this speech, remember this. [Insert primary point]“.
Usually, you’ll want to come up with a snappy catchphrase to insert here. If you tell them the primary point they should remember, and make that point memorable, then it’ll stick with them longer. So make sure you plan out the wording and make it good.
Not only will this help the audience remember your most important point, it forces you to pick the most important point. That’s a good practice to get into anyway.
If you get nothing else from this post, remember this: if your main point is forgettable, so is your speech.