Your title is 90% of your poster

I’m riffing off of this post by Randy Olson (click to enlarge):

In today’s short attention-spanned world, headlines are about 90% of your communication effort (the text is just a bunch of stuff to justify the headline, meant only for people with a lot of time on their hands).

If someone were to read just your poster title, would they know what you wanted them to know?