Bitcoin? Really? What kind of alternate reality do you live in that there are millions of folks out there with:<p>(1) bitcoins<p>(2) the technical wherewithal to use them<p>(3) actually would consider doing so in a cab?<p>Bitcoins are exactly the opposite of credit cards, they are far from instant and it&#x27;s more then a swipe&#x2F;touch&#x2F;insert + a pin, signature or even nothing.