@KenyanLyrics, that letter was actually extracted from Berkshire Hathaway's annual report (written by his uncle) and was touted by Warren Buffet as the reason why he has $38b in cash for good investments.
So heck, it works for business. But the key is a good cash buffer irrespective of the currency.
KenyanLyrics wrote:@muganda, how about (on a company level) converting cash reserves into dollars to avoid the negative political influences exerted onto our local currency?