Sam Altman just offered the US – meaning every American – US$42.6 billion (S$55 billion). (Not each, sadly). He said giving the government a 5 per cent stake in the company he runs, OpenAI, is the best way to ensure that Americans share in the promised bounty from artificial intelligence.Before the Trump administration takes him up on the offer, it should organise a group trip to see Christopher Nolan’s new movie The Odyssey, whose opening act is the most famous gift in Western literature: a giant wooden horse, wheeled through the gates of Troy by the people it destroyed. The…