We&#x27;ve had micropayment channels since 2012.  You can even do micropayment channels with regular money[1]. All that&#x27;s happened is that 21 put one in their api. I doubt that any hing is going to change that didn&#x27;t change when they were invented in 2012.<p>1. <a href="http:&#x2F;&#x2F;altheamesh.com&#x2F;documents&#x2F;universal-payment-channels.pdf" rel="nofollow">http:&#x2F;&#x2F;altheamesh.com&#x2F;documents&#x2F;universal-payment-channels.p...</a>