Quote from: o_e_l_e_o on November 08, 2020, 09:00:18 AM

Why do you say it is not useful as a currency? I can spend it for goods and services with better privacy, faster finality, more security, and lower fees, than I can with credit cards or PayPal. Just because there is not widespread adoption yet does not make it a bad currency.

Lower fees than credit cards or Paypal? I get cash back (negative fees) with credit cards and don't pay any fees. With Paypal, the merchant gets charged, not me. Not to mention the consumer protection I get. Bitcoin is superior in many ways, but the fee angle isn't the strongest case, at least for consumers.

For merchants, it's a trade-off. They trade price stability for faster settlement. Or they have to use a company like Bitpay, who can admittedly undercut Visa or Mastercard by 0.5%-1%, but still charges 1% to the merchant.

Quote from: o_e_l_e_o on November 08, 2020, 03:15:21 PM

Why? What's stopping us forking to a quantum-resistant algorithm?

Block size, blockchain bloat. Aren't Lamport signatures gigantic? Not a total deal breaker but something we hope to delay for as long as possible I'm sure, as it will seriously damage decentralization.