No, that's not what he said or implied, nor what I said or implied. Age is entirely relative, particularly when discussing the age of planets, stars, nebulae, galaxies and even the universe. In this case, as in many cases, we make things relative to what we understand -- or, relative to our own Sun and its planetary system. With that in mind, our scientists say 850 million years is a young age for a star and its planetary system. Comparatively, Sol is thought to be nearly 4.6 billion years old (and as I recall, about smack-dab in the middle of the star aging sequence). Our planetary system is slightly younger than that, having formed around Sol. Comparatively, the Eridani system is just a young'un.right so all civilisations throughout the universe take exactly the same amount of time to evolve and advance technologically.

Life (and I mean life in even its most elemental forms) can certainly evolve in different ways and at different speeds elsewhere in the universe.