Just Hit Play.
How would you describe broadcast to someone else? Basically, this block that I didn't know existed that is about 90x easier than having to add up 20 million "wait" blocks. You put it in, and then have someone do something when it is broadcast. When would you use timing in a project? When would you use broadcasting? When wouldn't you use timing? That's how videos and games work. You have to time stuff. Broadcasting is what you use when a new sprite comes in or perhaps when you've been using wait for a long time and it is taking forever to add up all the numbers for wait. Mostly, just when I introduce a new sprite, tbh.