Why is libertarianism so infallible?

It is due to it being the application of political science. It does not permit failed policies to be continued fruitlessly year after year with idealistic fervour, it is next to impossible for anyone surrounded by fierce libertarian critics to continue clinging on to lies. It is a purely functional machine, lubricated with justice and fueled by free speech.

i just started reading from the start

in fact, libertarianism is impossible to be proven wrong
but because of the libertarianism is always right

you cant prove it wrong because when you do, it can change to become right, but thats why libertarianism will never fail and always go on to be right, because it is not a set ideology, unlike marxism which gets stopped in its tracks when it reaches a problem.

libertarianism is made to build upon problems, it is like a person taught to think critically and not by a fixed set of rules where the procedure might always be different