In most cases the politician becomes so obsessed with power and corruption, the only sane thing to do is chain them and spray them with cold water

Interest in TEDx Soweto – now in its fourth year – is growing, but organisers say it could be even bigger.

Once, seeing the great thinkers explain their ideas was the privilege of city dwellers with time and money. Nowadays an internet connection will do.

The popular internet discussion forum TEDx has hit Jo’burg, and includes speakers Yusuf Abramjee, Richard Turere and Mandi Poefficient Vundla.

During a father-and-son interview with Will and Jaden Smith, Smith junior has revealed that Will watched hours and hours of the talks online.

Zimbabwe-born, Africa media heavyweight Trevor Ncube has said in his TEDx Talk that "life is unconventional, and we need to embrace it".

A week of TED Talks ranging from animal necrophilia to fighting poverty has ended, and the inspiring talks are now spreading across the globe.