Bitcoin is a technology that has a radical and disruptive impact on the entire world.
For the first time in human history, it created the possibility of allowing anyone to transfer money freely anytime, anywhere: without any restriction, control or other power.
This will be a fundamental part of the future of mankind.
Not technically free given there's tx fee everytime you want to do a transfer so no, it's not entirely free plus, the concept of bitcoin being free isn't true anymore given how expensive it currently is, I don't think so. Also, that's a pretty radical claim that bitcoin is going to be a fundamental, I mean does it span multiple disciplines like science, environment, population and health?