Tether CEO Paolo Ardoino said in an interview at the BTC Prague conference on June 13 that Bitcoin is the only decentralized currency. Ardoino emphasized that Bitcoin is the only currency that is governed by mathematical rules and cannot be changed, while other cryptocurrencies are relatively more centralized. He also mentioned that developers of other cryptocurrencies regularly release new software and change monetary policies, but Bitcoin always maintains a fixed total of 21 million coins and a halving cycle every four years. Ardoino admitted that his views may be controversial and he publicly stated that Tether is centralized. He also expressed doubts about memecoins, believing that they are the exact opposite of Bitcoin. (Cointelegraph)