You gain a complete understanding of all technology and science developed by humanity, as well as its offshoots, during and after the Golden Age. Besides basic things like Glimmer programming and jumpship engineering, this includes the AI technology of the Clovis Bray Corporation, the simulation tech of the Ishtar Collective, the nanotechnology of the Neomuni, and even the paracausal science of the Distributary Awoken.
You will be able to construct technology that requires paracausal forces to manufacture, such as Exominds, even without access to those forces. Materials such as spinmetal or relic iron can be synthesized using Glimmer, which you know how to make.