I've worked with many clients who want to give the audience EVERYTHING! However, what they forget about is the fact the audience don't want everything. They want just enough to help solve their problem or answer their question on the topic. That means as a speaker, we absolutely must think about the audience first. What are they coming to gain from your talk? What can you narrow your topic down to in order to meet their needs.
Remember, it's not about what you want to give - it's about what they want to gain.
Matt came to me because he was asked to deliver a keynote speech on a topic he loves. The issue with that is we always want to add as much into the keynote as is physically impossible to do! So who did he call? ME! Hear what he has to say about simplicity!