>Isn't this something someone can already do on established markets in the physical world? Name one trustless, permission-less system that avoids the double sp

>Isn't this something someone can already do on established markets in the physical world? Name one trustless, permission-less system that avoids the double spending problem. I would love to know about it. >Isn't this exactly what just happened in the article we're discussing right now in this thread? I don't know what you're saying. Participants could do their due diligence and fully understand the risks before participating. Who paid for someone else's screw up?