What is academia?

For all that I remember, why I started writing this post, about what is academia.
Its about rules, restrictions, bureaucracy, alignment to exams (but not strongly), people with great knowledge but missing something (as they are working, for food, their living, oouuh there is no choice left anywhere but there),

universities are a place of great knowledge, but only that is permissible in the society is shown or made known to others. One may only read books, but what matters is the force field of knowledge that is easily felt, even through books. If one writes something that is likely to outlast a person, it kinda carries.