I see what you mean, but you miss an important point. Reversible transactions must be reversed by a human intermediary. An insurance company, a financial insti

I see what you mean, but you miss an important point. Reversible transactions must be reversed by a human intermediary. An insurance company, a financial institution, someone who you must trust this way or another. In addition to obvious value (that you described), this also creates all sorts of issues we all know about: fraud, regulatory hassle, spying, freezing of accounts etc. Bitcoin as a protocol (or any alternative money-moving protocol for that matter) itself cannot reverse anything. It's just a protocol. Anyone can set up their own BitcoinPayPal and mediate Bitcoin transactions and reverse them as they like. The value of Bitcoin is that you can opt in insured reversible transactions based on trust if you want to. But that's not necessary. USD is limited precisely because you have no other way to move it across the internet without trusting intermediaries that might reverse the transaction. Bitcoin simply gives you all possibilities, USD gives you less. There's nothing impossible in having eBay to act as an escrow for BTC transactions just like with USD. But the power of BTC is that you can ultimately own it, while USD must be always stored in someone else's hands.