BizNews Edge: Rand slides on steady rates, Musk's AI warning, shake-up at IDAC, and more...

Elon Musk tells The Economist that AI will out-think the whole of humanity within five years, and he sounds strangely at peace with that. Back home, the Reserve Bank blindsided everyone with a shock rate hold, the Rand took its worst knock in months, and Citigroup walked away from a bet it had believed in for weeks. Add a dramatic exit at the top of South Africa's anti-corruption unit, big numbers from Vodacom and Impala Platinum, and a fond farewell to RW Johnson, and that's a full day of news in about twenty minutes. Have a listen.