From a legal point of view you are completely right. Personally I find the whole idea of IP to be a little too strict. It is possible for me to come up with an

From a legal point of view you are completely right. Personally I find the whole idea of IP to be a little too strict. It is possible for me to come up with an idea completely independently and still get sued because someone got the same idea and decided to make it his IP. Some big tech companies have the same strategy as patent trolls, and for some reason this is a much more widely accepted practice.