I think the reason why bitcoin can be exist till now because there's so many people who support in bitcoin, so many people still believe bitcoin can give them a lot of profits that's why they always investing in bitcoin till now. Bitcoin as cryptocurrency that people fall in love to I guess, lol.
I think right now, many people start to fall in love with bitcoin because they can make money from bitcoin and I think this is the most reasonable from people which use bitcoin and using bitcoin in trading ways. they still give a big support for bitcoin and will make sure that bitcoin still exist among us and will be a new way to make money.