I'm not sure I'd end by signing "the people who designed the hardware, software and network infrastructure you're reading this on," but I do know the feeling.
It's especially poignant in relationships. I feel compelled to provide a justification for why I want to be alone, because people assume that "because I need time alone" needs further translation. Sometimes it does, but for me it is how my mind settles. For a long time, I tried to change that part of myself -- I was told it is a maladaptation. Now, I think it's just how I am, and I don't feel a justification is required.
I like quiet.