The answer to the question presented above would be true. It is true that a speaker should aim to be simple, rather than complex. He should be able to convey the lesson, lecture, or message in a way that people can easily understand.
When speaking in public it's very important that the message the speaker is trying to communicate is effectively transmited to the audience. Unlike written texts, in an oral presentation, the audience doesn't have the chance to read again in order to undestand an idea. They need to be able to follow all the ideas at the same time you are speaking. In order to do this, there are some things that must be taken in consideration. One of them is keeping your audience's interest by presenting your information in a simple and organized way, defining the important concepts in the beginning and developing good transitions between topics. Otherwise the audience can get bored or confused, not paying attention ot getting stuck in a difficult concept or idea. In this way the whole point of the presentation is missed.
