So cryptocurrencies are the latest things people are trading in right now, essentially it's a digital currency. Before many were skeptical, especially when Bitcoin came out in 2008. It started out at a few USD cents, but has now risen to almost $16,000 recently. Bitcoin was the first cryptocurrency to come out and since then more have been developed (nearly 1400 to date). These cryptocurrencies are made up of complex algorithms which often allow for a limited number of these currencies.
It's a currency that puts you in control of your funds, and doesn't go through banks or anyone. This makes it highly decentralized, can yield returns faster and greater than any other form of investment both at banks and stock markets (however it's far more volatile), and many of the cryptocurrencies are untraceable or very hard to keep track of. So far in most countries the returns are also tax free but revenue services are trying to clamp down on it. Also any major financial downfalls that occur in a country, cryptocurrencies can protect your funds. An example was when Greece almost went bankrupt and a lot of people almost lost most of their funds in the banks. Those who managed to move all their money to Bitcoin were safe because the banks could not touch their funds.
So when trading in cryptocurrency, you would need to register with a trading exchange online, set up the right security measures (because these are very high theft stocks, with over $30 million of Ethereum being stolen in the second half of 2017 alone). Your profile on any exchange will have a "wallet" which you would send your funds to, and from there you would buy the cryptocurrency you wish to buy. When you sell your cryptocurrency the funds go back into this wallet and not your bank account. You will have to transfer it to your bank account as a separate process. You also do not have to buy a whole cryptocurrency, you can buy fractions of them. So with Bitcoin being at around $13,000 at time of writing, you can buy 0.00384 Bitcoin for $50 and let it grow.
If you want to see what all the cryptocurrencies are trading at, you can view them
here. It's quite a gamble and should be exercised with a lot of caution, but I have made some great returns. The key rule is only invest what you're comfortable losing. So I only pump small amounts in each month and gradually build up my Bitcoin wallet. Although these are long term investments, trading in these will require you to follow some cryptocurrency news to see what's happening and can help you find out when to buy more or get ready to sell. But there's always last minute changes that can play a big role. For example Ripple was predicted to sky rocket after CoinBase said they would list it in their trades, and the price of Ripple went from less than a dollar to $3.26 and it just kept climbing. So a lot of people were buying huge amounts of it and then last minute CoinBase announced they will not be listing Ripple and the price dropped heavily to $1.66 and maintained a consistent value.
When you hear someone looking for "the unicorn" in cryptocurrency, that means they're looking for that one cryptocurrency that's dirt cheap now and has the potential to spike like Bitcoin in a short-term period. So the unicorn will allow you to buy huge amounts of this cheap cryptocurrency and when it spikes they become overnight millionaires. One person I work with bought 384 Ripple, and if Ripple had to reach the current Bitcoin price now, that would be worth $5 million off a $400 investment.