this is the idea...
Nope. Black holes form from regular 3D objects according to the rules of General Relativity. Besides, a shadow isn't a physical object. It's just a spot on a surface where the light has been blocked.
Also, you should be aware that discussion of personal theories/ideas such as this are against PF rules. We stick to mainstream science. I'm afraid I'm going to have to lock this thread.
Separate names with a comma.