Speaking from my own limited knowledge, the whole idea of btc is still a mystery to me till this day, with it's first Blockchain mining in 2009, it's amusing how this journey has gone thus far. In 2008 when traditional financial institution have low trust, the founder (Nakamoto Satoshi) came up with a way to carry out financial transactions not based on trust, that is to say, eliminating a trusted third party, thus coming up with a per-to-per kind of transaction based on proof-of-work so as to create a safe and secure transaction without the involvement of a third party.
It all started like a joke and then it evolved to what we have today, I remember the pizza incident 2010, although, it marked the first significant use of BTC for commercial purposes but it also shows how far this wonderful gem has come.
Built on a Blockchain by a mysterious individual who isn't exactly doxed, today alot of us has acquired wealth from it, gained financial freedom and even retired thanks to it, BTC is really to me a wonder and a mystery.