Infamous cryptocurrency Bitcoin is renowned for enabling its users to buy illegal goods online. But thanks to a Berlin-based cluster of brick-and-mortar stores, people can buy a beer with Bitcoin now, too. But what do retailers stand to gain from accepting a currency that’s still so underused?

The bitcoin boom of 2017 brought cryptocurrencies into the mainstream – but they offer more than just a quick buck for tech-savvy investors. From sex workers to vegans to LGBTQ individuals, the underpinning tech is helping marginalised groups break free from traditional financial authorities.

Fintech startup Revolut is launching a debit card that allows users to get cash back in cryptocurrency. As young people become increasingly sceptical of traditional financial institutions, services that can position themselves as a pot of gold at the end of the digital rainbow, are likely to be winners.

Giftcoin is the world’s first cryptocurrency designed for transparent charitable giving. Could this use of cryptocurrency – which was until recently an alternative or niche way of spending – be a step towards seeing radical ideas becoming mainstream models?