There is a believe in bitcoin by almost all member on this forum. Bitcoin and cryptocurrency is all about speculation and it only believe that makes it as a religion by its members having faith in it.
Bitcoin is a digital currency, which is a currency but uses it digitally. So there must be devices such as smart phones or computers and the internet. Bitcoin users are people who have confidence that bitcoin can increase their income so that their lives get better. Having confidence here is believing not religion.