> fast enough. 15 minutes to validate a transaction is sufficient for a porn site.
There's a thing called 0-conf where you accept a transaction even before it's included in a block. This is used by BitPay, the worlds largest Bitcoin payment processor, to accept Bitcoin Cash in just a couple of seconds.
It's safe enough (there's always a risk/reward trade-off) for smaller purchases if you just use a few simple heuristics like requiring a sane fee and checking for double spend attempts for a couple of seconds.
They can convert it back into a national currency through an exchange like Bitstamp, paying a fee of 0.25% for conversion to dollars/euros and however much the fee for wiring money is(it's surely less than 1%).
There's a thing called 0-conf where you accept a transaction even before it's included in a block. This is used by BitPay, the worlds largest Bitcoin payment processor, to accept Bitcoin Cash in just a couple of seconds.
It's safe enough (there's always a risk/reward trade-off) for smaller purchases if you just use a few simple heuristics like requiring a sane fee and checking for double spend attempts for a couple of seconds.