Yet some crypto watchers have raised red flags over SafeMoon’s unusual structure. It charges a 10% fee to buy tokens and another 10% to sell -- almost unheard of in the digital currency world. Half of these fees are paid to owners as an incentive to keep holding and the other half goes into a liquidity pool controlled by the developers. SafeMoon calls itself a DeFi token, or one that uses decentralized finance to govern functions through software, but it has a chief executive officer and chief operating officer. Critics also worry about the discretionary nature of the “manual” coin burns used to adjust its circulation.
In the meantime, cryptocurrency users (and nonusers intrigued by cryptocurrency’s promise) need to remain ever-mindful of the concept’s practical limitations.

But no true cryptocurrency emerged until the late 2000s when Bitcoin came onto the scene.
Bitcoin is inarguably the most famous cryptocurrency to date. Designed by an anonymous individual under the pseudonym ‘Satoshi Nakamoto’ in 2008, it is the biggest by some distance in terms of market capitalization.* It can be used as a medium of exchange, with companies in sectors ranging from travel to gift cards to jewellers having accepted Bitcoin as payment through anonymous transactions.