Don’t get me wrong. I’m not saying failure is some magical thing that makes everything better. Failure and rejection are always unpleasant. It’s hard when you get your hopes up for something, then it doesn’t work out.
When you spend long enough on the software scene, you learn enough to give a good talk or two. The problem that Beau mentions here is the disappointment when that good talk isn't seen as good by the gatekeepers of conference stages. But there's always a way to turn it around.