Ahhh, I can write more than 20 of the answers but I think that is enough to express the feeling and my answer is all of the above haha, obviously I've wrote it, observed it and studied it so that's what Bitcoin means to me.
Dear you wrote an impressive reply well if i share only my story on bitcoin and why did i started to take interest in bitcoin. As far as i remember the beginning days when my friends used to talk about bitcoin sitting besides me i used to feel their talks so boring and when days passes after another i also started to take interest in bitcoin and started to learn about it and to be very honest i am still learning dear because i belive a person can never full of knowledge and the one who says i know everything is like a sparrow who just sip water from the big sea which in return he knows nothing.... Actually This thing i come to know from my religion.
On the other Hand, bitcoin is the First digital currency i bought for the long term investment and as i aforementioned about my friends they guided me where i needed them To be very honest i did not know how to buy this they guide me a very newbies steps well obviously it was my first time experience of buying digital currency so i really did not know how thing work here in crypto space so whenever i got confused/nervous they help me to overcome it but i also try my best to do my own research before asking them and when i feel i can not solve this problem then i used to approch them. So this is my mini step in into the crypto space.