Q: How does bitcoin work?
A: https://www.virtueofselfishinvesting.com/faqs/answer/how-does-bitcoin-work


Q: Concretely, suppose I want to buy a car that is selling for $25,000.  The dealer says he’ll take payment in dollars of bitcoin.  OK, let’s say I’ll go with bitcoin.  So where do I get it?  I have to buy it, right?  With dollars, yes?  So why bother with the middle step and instead just plunk down $25K in dollars? I understand that if I buy bitcoin it may skyrocket in value, but it also may plummet in value.  So my buying a car with bitcoin could be like Christmas… or like, say, February of 2008.
A: https://www.virtueofselfishinvesting.com/faqs/answer/why-buy-something-in-bitcoin-when-i-can-buy-it-in-dollars