Bitcoin's rise and fall to date already makes it one of the greatest market bubbles in history. In turbulent times, some have suggested it as a substitute for gold, but it lacks some vital attributes.
If Bitcoin is a bubble, it will be because its price rises are too great and can't continue. If it isn't, it will be because the Bitcoin market is still expanding. We just don't know which one yet.
Energy storage is often considered the holy grail of the electricity sector. Great for households, it could be as important in the wider electricity network.
Stock price volatility can be more easily predicted in bear markets, a study has found. Researchers at The University of…