Virtual or real?
Stories of people making a lot of money in no time, with digital currencies such as Bitcoin, are obviously the stuff of dreams. But if you look at the reality behind this fairytale for a moment, you'll quickly notice these 'cryptocurrencies' have gone through extreme fluctuations. In other words, who gambles well makes a lot of money, who gambles poorly is in danger of losing a lot.
The very adventurous investor is probably willing to take huge chances. For those who are rather looking for a long-term strategy, investing in gold remains an interesting option. Granted, we don't expect its value to tenfold within a year. But then again we don't expect the house of cards to come crashing down as fast either...