<prompt> Akaretsa ntlhakgolo go tswa mo temaneng.Qetellong ea 2020, Bitcoin e ntse e tsoela pele ho ba chelete e tsebahalang haholo ea crypto. E se e tumme ka lebaka la tsireletso ea eona, ho arola mebuso, le litšenyehelo tse tlase tsa transaction. Ho sa tsotellehe botumo ba eona, ho ntse ho e-na le likotsi tse amanang le Bitcoin. E ntse e sa amoheloe ka bongata mme theko ea eona e ntse e fetoha haholo.  <response>: Instruction in English: Sum up the main idea from the passage. . Response in English: Bitcoin is the most popular cryptocurrency in late 2020 due to its security, decentralization and low transaction cost, however, there are still risks such as its high price volatility and it not being widely adopted. . Response in Sesotho: Bitcoin ke chelete ea crypto e tsebahalang haholo ho elella bofelong ba 2020 ka lebaka la tsireletso ea eona, ho arola mebuso le litšenyehelo tse tlase tsa transaction, leha ho le joalo, ho ntse ho na le likotsi tse kang ho feto-fetoha ha theko e phahameng le hore ha e amoheloe ke batho ba bangata. 