Oh dear. Baroness Greenfield has been speculating in the media again, about how the little children's brains are getting hurt by bad old computers. I wish she would stick to neuroscience. So does Ben Goldacre of Bad Science, who laid into her in his Guardian column on Saturday. Ben Goldacre is my hero, in an intellectual, geeky sorta way. Sadly, Baroness Greenfield used to be my hero when I was an undergrad. That was back when she talked about her actual research evidence instead of scaremongering about other topics. Even more sadly, she is Chancellor of my university: a fact I hope is not generally known. It's embarrassing , that's what.