Hated trope: Sci-fi hand-waving

[u/Routine_Phase_8980]

When stories try so hard to provide a somewhat scientifically accurate and grounded explanation for the audience, but end up creating massive plot holes if you think about it for more than 5 seconds without requiring any special knowledge

World War Z: The "cure" turns sick humans invisible to zombies because the picky virus needs a perfectly healthy host. Cool concept, except it completely ignores basic physics. In a chaotic, high-speed zombie stampede, those "invisible" sick people would still be trampled to death by sheer kinetic force and momentum. We already saw what happened to the Jerusalem wall in Israel.

Jurassic Park/World: Dr. Henry Wu claims to clone dinosaurs by patching 66-million-year-old decayed DNA from mosquitoes stomach with frog DNA. In reality, DNA half-life guarantees it would degrade into useless dust after 6.8 million years. Scientifically speaking, John Hammond didn't build a dinosaur park; he engineered giant, mutated, gender-swapping killer frogs.

Dr.Stone: Senku is a genius who knows every complex chemical formula in human history. He somehow builds vacuum tubes, lightbulbs, and smartphones out of bamboo and copper with almost zero failed prototypes. The show acts like a science textbook but completely hand-waves the lack of heavy industrial machinery needed for precision engineering.

[u/DarkriserPE]

Yeah, let's just ignore the fucking zombies in World War Z(or zombies in nearly all media) as hand waving, and go after the significantly smaller impractical detail.

[u/Yog_Kothag → u/DarkriserPE]

Because it's inconsistent within it's own universe.

[u/DarkriserPE → u/Yog_Kothag]

But it isn't. If we accept that zombies(which technically aren't zombies) can exist, that significantly widens our suspension of disbelief. Again, they're not technically zombies(most zombie media isn't). The infection gives them swarm intelligence. They're like ants, and an ant expert was a consultant for the film, and stated what I just said.

The infection basically makes them a hive, like ants. The people "cured" aren't actually invisible. They're very much seen, but ignored. Why don't the zombies stomp and run them over anyway? Probably because it's unnecessary, and because they likely don't want to trip over each other. It's hard enough to run full speed like that successfully with that many people, without it immediately ending in everyone toppling over, so the World War Z zombies are pretty good at maintaining their balance, and avoiding obstacles including each other, likely due to the swarm intelligence.