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Organisers say its the 'Olympics of the future' where athletes are allowed to take performance enhancing drugs to attempt to beat current world records.

However World Athletics president Lord Coe says "it's nonsense" and anyone who does take part would be "moronic" and would face a lengthy ban.

Gold medal winning Olympic swimmer Matt Richards has weighed in on the debate around this - he's been chatting to Felicity Kvesic: