One thing I'm still not sure I understand about bitcoin's viability to work in real world stores - is how long it takes for payments to process.

How does this work from a store owner's perspective? How can you be sure you will get your money if someone walks in and offers to pay via bitcoin?

Would the customer not have to wait there with you until the transaction is confirmed to avoid the possibility of being scammed somehow?

Thanks in advance for any answers.

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Hi Guys,

Quick question - I have a single USB Block Erupter running on my work PC 24/7 - without cooling.

I know I am probably just being paranoid (I am a health and safety obsessive sometimes), but I can't stop occasionally thinking - could this be a fire risk? Is this a bad idea? Just from how hot it seems to get.

So my question:

Is there a risk of fire (or any kind of damage/significant problem)?

Also, bonus question:

Should I buy a USB fan for my single Erupter - or would this be overkill/not financially viable?


Big thanks in advance if anyone has the time to answer.

Cheers