Advanced aliens didn't invent/discover this one basic thing.

[u/HotUKTakes]

1. The Santi, from The Three Body Problem, are masters of dimensional engineering. They can build an AI computer the size of a planet, and fold it into the size of a photon.

But they never invented the concept of lying.

1. The Asgard, from Stargate, are an advanced civilization with FTL travel capable of spanning different galaxies. But they need the help of humans to fight their enemies the replicators, a mechanical lifeform comprised of replicating lego blocks, because human guns can blow the blocks apart, while Asgard energy weapons are just absorbed.

The Asgard say the idea to use chemical reactions to launch a blunt object at high velocity never occured to them.

1. Despite having the ability to build a simulated beach, complete with simulated earth atmosphere, The Eridians didn't discover relativity and radiation.

2. The aliens from War of the worlds just lick everything, clearly having no concepts of germs. Which is what kills them in the end.

3. Despite having FTL travel, the Havesters from Independence day, never invented network security, as they are hacked by a human macbook.

[u/LigerZeroPanzer12]

Well, technically, it was the Astrophage that blocked the radiation; it wasn't purposefully set up to block radiation, it just happened to without them knowing. It was really a fluke that Rocky survived.

[u/Dobgirl → u/LigerZeroPanzer12]

I may not understand you- allow me to elaborate- in the book Rocky’s crew dies and he couldn’t help them. They didn’t understand harmful radiation at all. No shielding

[u/LigerZeroPanzer12 → u/Dobgirl]

Yes, I agree, it was ironic fate that the Astrophage blocked the radiation in the section that Rocky was in, he was saved by sheer cosmic luck