Bitcoin mania is all over town, with mom and pop investors such as Mr and Mrs Watanabe getting in on the action. Real estate, long known for its old school sheen, is slowly getting into the action, with some sellers putting up their homes for sale by accepting bitcoin only. How exactly will this work? From the outset, the volatility of bitcoin is going to cause major concerns. If a house were listed for say, 10 bitcoins, which at the time of writing is worth approximately US$18,000, the seller would have the peace of mind knowing if the transaction were completed there and then, he would pocket that amount. But we all know that bitcoin isn’t exactly a currency and has wild moves in its value. One bitcoin was worth about US$19,600 just a few days ago. That’s an 8% drop in value over just a few days......