I can't help it if you are not capable of understanding, and I've done all the explaining I'm going to do. Assume whatever you like; I've learned enough about you on this one thread to form my own opinion about what that means to me - precisely NOTHING.
I understand what you said perfectly. I just don't believe you.
Now, here's a question about your understanding: do you understand that your mere word is not self-evident truth that must be agreed to as soon as comprehended?