Cook didn't specify which coin he owns, like bitcoin or ethereum, but he said Tuesday that the space is something he's been interested in for a while.
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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.
Notes: This figure plots weekly averages of log price and log computing power (log hashrate) of Bitcoin and Ethereum over the period from August 2015 to January 2019. We normalise both time series by subtracting their mean and dividing by the standard deviation.