Bitcoin bubble: Can cryptocurrencies recover from their price plunge?
This week, we're delving into the world of cryptocurrencies. Has the Bitcoin bubble burst? Prices are down more than 50 percent this year - but could they recover? Despite the price volatility, new cryptocurrencies are still being launched. We look at the market for Initial Coin Offerings. And we take you to the Alpine village experiencing a new gold rush, thanks to digital currency mining.