SARAJEVO :South African businessman Errol Musk, the father of billionaire Elon Musk, visited Bosnia this week to assess its potential as a location for a research institute on gravity, space-time and longevity, months after saying he planned to base it in Dubai. The elder Musk, a 79-year-old engineer who is estranged from his son, was quoted by Bosnia's Klix news portal as saying he had been offered a location in the United Arab Emirates but was advised to try the Balkans by a friend there