Well, as I told you on the bridge, they are an advanced culture.

But what chance would they have to resume an advanced culture and technological base?

"That means these tribesmen have had some kind of contact with a more advanced culture."

"For you to have them in such an advanced culture makes no sense."

Proof that a fairly advanced culture is in operation here.

Although who knew what there was in the Vorlons' advanced culture?

There are pills and things to do it in more advanced cultures.

A millennium ago, they were the most advanced and powerful culture in the world.

If there are human beings here, they do not have an advanced culture.

Therefore, no advanced culture anywhere and a small population, if any.