A speech like that would make the speaker sound like he doesn't have a full grasp of his or her own mind.. which in turn would lose the speaker credibility. Also, if a speech isn't coherent the listeners switch off... The speaker would be viewed as a blithering idiot - literally
Hmmm. It brings to mind a specific someone for me. Does it bring to your mind a specific someone too? The same someone perhaps? Thank you for your reply Addb! :)