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Re:Bitcoin Halving Just Occured by xur17 on Monday May 11, 2020 @05:01PM (#23147030)
The "blockchain" doesn't need to support this - the GP's point is that transactions don't need to irrevocably settle for all transaction types. If you're spending $5 to buy coffee, the chance that you are going to defraud the store is low, and there are a number of less complex ways you could accomplish this anyways (just take the item off the shelf, and leave without paying).

And I'll note that there are other ways to accept bitcoin payments without high fees or long wait times (lightning).

Re:Bitcoin Halving Just Occured by dangwu on Monday May 11, 2020 @05:21PM (#23147230)
I strongly disagree. I think you are overestimating the morality of the common man. If you enable anonymous purchasing of items with no proof of funds being sent, it will be abused. A lot. No storefront will sign up for this. This is very different than physical shoplifting.
Re:Bitcoin Halving Just Occured by X6S1x6Okd1st on Monday May 11, 2020 @05:37PM (#23147400)
I have some shocking news for you about how most sit-down restaurants sell food...
Re:Bitcoin Halving Just Occured by xur17 on Monday May 11, 2020 @05:22PM (#23147243)
It's not anonymous if you're standing in the store paying..
Re:Bitcoin Halving Just Occured by dangwu on Monday May 11, 2020 @05:27PM (#23147296)
It's anonymous enough if you never reveal your identity. It would be like driving somewhere, paying cash, then later the cash is revealed to be fake. And there's no way for the storefront to test for legitimacy until an hour later.
Re:Bitcoin Halving Just Occured by xur17 on Monday May 11, 2020 @05:37PM (#23147396)
So, like credit cards (could be stolen, chargeback risk, etc).
Re:Bitcoin Halving Just Occured by dangwu on Monday May 11, 2020 @05:45PM (#23147472)
1. Credit card fraud is an extremely small percentage of credit card activity. What you are proposing would likely not be.

2. Chargebacks are disputed, and as a storefront you can prove that you are not liable. Merchants can review the identifying documents of the cardholder for legitimacy and take other security steps, like using a chip-enabled card terminal, to further confirm the validity of the purchase. If they follow the process correctly, they are not liable for fraudulent purchases, the cardholder’s issuing bank is. Visa and MasterCard’s contracts generally put the burden of fraud reimbursement onto the bank.

Re:Bitcoin Halving Just Occured by X6S1x6Okd1st on Monday May 11, 2020 @07:41PM (#23148743)
Given your estimate of the "morality of the common man" why would credit card fraud be an extremely small percentage of credit card activity?
Re:Bitcoin Halving Just Occured by dangwu on Tuesday May 12, 2020 @05:17PM (#23159971)
Because of aforementioned security protocols. It's much harder to get away with credit card fraud.