In the comic strip Calvin and Hobbes, Calvin asks his dad how engineers determine the weight limit on bridges. The dad answers that they do this by driving heavier and heavier trucks over the bridge until it breaks, then rebuild the bridge after discovering what it took to break it. This isn’t how engineers actually figure out the safety specifications …

Bloomberg Investors schooled in the diplomatic ups and downs between Qatar and other Arab nations say there’s no reason for panic. The Gulf nation’s equities plummeted the most since 2009 as four Arab nations push to isolate Qatar for its ties to Iran. If history is any guide, the tensions won’t have a lasting impact on the country’s financial assets. …

Bloomberg The speculative frenzy in bitcoin is spilling over into the Tokyo Stock Exchange. Remixpoint Co., Infoteria Corp. and Fisco Ltd., have all seen volatile swings in their share prices after announcing businesses related to digital currencies. Remixpoint, which has more than doubled since tying up with Peach Aviation Ltd. to let customers pay for tickets with bitcoin, fell as …