>how we can combine recent signals (like thumbs) to take into account your current mood This is the most interesting part of the problem to me. I always worry

>how we can combine recent signals (like thumbs) to take into account your current mood This is the most interesting part of the problem to me. I always worry that the signals I send my favorite music radio service permanently alter the course of the channel. In some cases, I want that. In others I don't.