The founder of Wikipedia, Jimmy Wales, expressed his opinion about cryptocurrencies and DLT. The blockchain has prospects, in his opinion, however, cryptocurrency is hardly ever scaled to the level of fiat money. He said he felt skeptical of crypto, like of the dotcom bubble.
Wales named several barriers that would prevent large-scale crypto-currency in the world. The first is scalability. The second problem is the irreversibility of transactions, that was always called the advantage of crypto currency, but for everyday life, for an ordinary means of payment such a criterion is not suitable.