Silver Age Beyond
At Tech Level 5, reusable spacecraft are now easily possible. The crafting of advanced steel ceramic and steel plastic hybrids becomes possible, primarily used as starship hulls. Fusion power has been invented, but may not yet be widespread. Computers have become commonplace, and most planets at this tech level have globe-spanning computer networks.
The dominant cultures of the planet Earth are only just now leaving this Tech Level and taking their first steps into embracing Tech Level 6.
Posthuman ‘gods’ (pre-classical era parahumans who allowed themselves to be worshiped as such) first reached this tech level during to the Diaspora due to the discovery of anachronistic Primmortal technology that allowed them to transcend the earth and leap out into the solar system, where they discovered the first jump gate, and left First Earth for the wider galaxy.