This is false.  The micropayments system they are using is based on fancy Bitcoin transactions and does not require anyone to be trusted:<p><a href="https:&#x2F;&#x2F;21.co&#x2F;learn&#x2F;intro-to-micropayment-channels&#x2F;#how-micropayment-channels-work" rel="nofollow">https:&#x2F;&#x2F;21.co&#x2F;learn&#x2F;intro-to-micropayment-channels&#x2F;#how-micr...</a>