It’s a damned shame that Oscar Pistorius and his carbon-fibre legs have been barred from competing in the next Olympics. I’d have watched him. Every four years it’s the same old: regular humans running around with nothing more than the legs they were born with. Boring!

I want to see a transhuman Olympics. More doping. More technology. More speed, strength, and agility. Meat versus machine. That would be a spectacle.

It would also pose some hard questions for athletes. How much do you value success? Would you give an arm and a leg, or two legs, for it?