Hey Jon;
No problem dude. Actually, I don't think your post is off-topic at all. Like Karl's post, your post explains why this type of class is so important for those people who want to go into the laser show business one day.
I agree with you and Karl in that taking the class doesn't automatically make you a certified expert. But it does give you a foundation of knowledge that you will use when planning shows from that point forward. And that foundation is worth a lot more than a piece of paper!
Also, I probably should have clarified things a bit regarding who this class is aimed at. If you are very new to lasers, and are still trying to figure out the difference between scan angle and scan speed, then this class is probably going to be too much for you. But if you are thinking about performing laser shows for the general public, then you really need this training before you start your business. (And really, if you're still struggling with things like scan speed and scan angle, then you're not ready to get into the laser show business anyway.)
True, you need to be able to understand basic algebra, and you also need to understand things like irradiance, MPE, divergence, and so on. And if you don't have a firm grasp of those terms, or if you failed algebra in high school, then you're going to have to do some studying before you attend this class. But make no mistake: you're going to need this class (or another one like it) if you ever expect to do public laser shows safely and professionally.
So to the people who want to take the class but may be worried that they can't handle it or aren't ready for it, let me ask you this: Do you plan to go into business performing laser shows for the public? If the answer is yes, then you need to do some studying. If you can't bring yourself up to speed between now and SELEM, then don't take the class. But realize that you also need to postpone the launch of your laser business too, because you really do need to understand these things before you go commercial.
Adam