LikeSpiderman's PeterParker, who gained the abilityto sling webs andclimbwallsafterbeingbitten by a spider, BarryAllenwasshocked into superhero-statusbyaccident.
Like a Roman arena, conflicting speakers - Peter Mandelson, Irvine Welsh, Naomi Klein, Michael O'Leary and Sebastian Barry have already rowed in - are thrown to the pit to try to convince the largely attentive audience of their beliefs.