> what value is there in what one says about it? I'm not trying to make a contribution to a scientific conference; I'm just some dude, trying to have a convers

> what value is there in what one says about it? I'm not trying to make a contribution to a scientific conference; I'm just some dude, trying to have a conversation with smart people, and so become better-informed. I probably seem rather defensive; I'm no expert, and I know there are experts around here. I'm OK with being slammed down by experts. I can take the punches, I have nothing to prove. But I am sorry that those experts might be hurt by my remarks - I'm just some inquisitive dude on the internet, raising questions.