Most people bake a cake from a box...or from a trusted family recipe before diving headlong into recipe formulation....dontcha think?
+1.
My take on this is that there is a difference between true experimentation and throwing things together "willy nilly." I have noticed on here is that a lot of noobs think what they are doing is experimentation, when in reality they are just throwing a bunch of stuff against the wall and hoping it sticks.
Throwing a bunch of stuff in your fermenter and seeing what you get at the end, and ending up making an "is my beer ruined" thread is not the same thing as experimenting.
To me, in order to experiment truly, you have to have an understanding of the fundamentals. You have to know how the process works somewhat. You have to have an understanding of how different ingredients or processes affect the final product. You may even need to know, or at least understand something about beer styles, and what goes into making one beer a Porter and another a pale ale. And where your concoction will fall on the continuoum.
To me it's like cooking or even Jazz. But going back to the cooking analogy. Coming up with a balanced and tasty recipe takes some understanding of things...just like cooking...dumping a cup of salt will more than likely ruin a recipe...so if you cook, you KNOW not to do that...it's the same with brewing...you get an idea with experience and looking at recipes, brewing and playing with software how things work..what flavors work with each other, etc...
That to me is the essence of creating...I have gotten to a point where I understand what I am doing, I get how ingredients work or don't work with each other, so I am not just throwing a bunch of stuff together to see what I get.
I have an idea of what I want it to taste like, and my challenge then is to get the right combination of ingredients to match what is in my head. That's also pretty much how I come up with new food recipes as well.