As per the title, why wouldn't there be any safety measures in place, such as an EMP (Electromagnetic Pulse) device, to knock out the hosts in case of an emergency?

  • 1
    How would they do that? Detonate a nuclear bomb near the park?
    – Buzz
    Commented May 8, 2018 at 1:06
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    @Buzz - Build a bigger version of this?
    – JohnP
    Commented May 8, 2018 at 1:09
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    – JohnP
    Commented May 8, 2018 at 1:17
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    Wouldn’t that knock out the doors, vehicles, systems, too? And presumably everything (including hosts) resets rather than dies, so it becomes a question of whether you can reset the equipment and clean up all the hosts in time (or between large EMPs). Assuming the hosts are indeed vulnerable to EMPs.
    – Pam
    Commented May 8, 2018 at 7:11
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    It isn't off topic, at least not for the reason given. Commented May 8, 2018 at 10:20

1 Answer 1


Ignoring the question of whether Delos has the capacity to fire the sort of nuclear weapon or weapon-scale EMP that would be required for a park of that size (they don't), ignoring the damage that would be done to the assets in their other parks (considerable) and ignoring the potential side-effects on whatever's outside their parks (catastrophic), I suspect the simplest answer is that the hosts are likely to be relatively unaffected by an EMP.

The human body forms a pretty effective Faraday cage for enclosed electronics and the pulse strength would need to destroy embedded electronics has to be very considerable, well beyond what you could get from a typical airbursted nuclear weapon.

As we can see from the image below, their bodies are largely fake-organic material controlled by a computer core housed inside the brain-pan, surrounded by fake skull tissue, a fake brain and a secondary inner skull filled with fluid. Assuming the host tissue is roughly analogous to organic tissue, an EMP would be relatively ineffective at shutting down the electronic components unless it was very close indeed or ridiculously powerful.

Warning. NSFW - Icky.

enter image description here

  • Although one could assume that in such a technologically advanced realm, such as in Westworld, that an EMP device of such magnitude could also exist. This is a plausible and well researched answer based on our current realm.
    – Magic Mick
    Commented May 18, 2018 at 4:42
  • @MasterMick - Sure, but if we're going to invent magical weapons, we could just as easily say "maybe it's because host material has a special resistance to EMP" :-)
    – Valorum
    Commented May 18, 2018 at 6:04
  • 1
    This answer is no longer valid as of Season 3. :) Commented May 12, 2020 at 23:11
  • @Pastafarian - I'm not up to date on the show. You're welcome to post a conflicting answer if there's new canon
    – Valorum
    Commented May 12, 2020 at 23:14

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