It doesn't have to absorb it all or be nothing. There are people who only use cash, won't use the internet, telephones, don't have a facebook, etc..It doesn't have to be a part of a lot of countries to succeed, just be used by a percentage of the population as a choice of payment. Just because Satoshi said it, doesn't make it true, it was just his personal opinion. Stop saying it like it's a scientific law.  This is just the start of Bitcoin. It will take years to develop and make more mainstream so the less techinically inclined people can use it and understand it. The sentiment of the forum right now is horrible. Yes, bears have been right this year, but they cannot predict the long term future of Bitcoin. Everyone needs to stop sh1tting on Bitcoin so people who google it don't come across so much negativity from people who are only trying to drive the price down and collect more coins for themselves. It scares people away and gives Bitcoin a bad name.