As long as there are still many people who are interested in bitcoin, bitcoin will still alive and will never die until it can be distruction and until it loses its value.
Blockchain technology is very important, there's no point of error that can damage the blockchain either intentionally or unintentionally.
I don't think it's a financial pyramid, but a digital currency that indeed having a sophisticated and decentralized system that makes it easy to transact, and providing many benefits.