Pure availability of previously gate-kept information almost to a fault. Want to become an expert on music theory? 3D modeling? Woodworking? need to know what some small component on your car is supposed to look like compared to its current fucked up state? Want to know how to fix some electronics you found for free?

Especially if you have no regard for IP. Pirate as many e-books you want. Textbooks, repair manuals, philosophy, fiction, etc.

If one has the drive to be a self learner, an individual has so much more power to create, repair, grow.

Only downside is being overwhelmed by all the info and its very hard to learn to filter, process, and ignore noise.