So, If you're familiar with the anime GATE (not to be confused with Stein's Gate) or A Connecticut Yankee in King Arthur's Court, you probably know what's going on and why I have a boiling hatred towards earthlings
One day, in the middle of your fantasy world, a gate opens up to another world, i.e: modern-day Earth. Sure things might seem okay, since when would you be stupid enough to try and fight a completely unknown enemy, but as time goes forward the lustrous green pastures get replaced with cities and there will always be at least one ruin pub next to an ancient site. Also, if dragons complain about their favorite rivers tasting like detergent, well, that's their problem. "Move somewhere else."
I decided to nip this trouble in the bud with a 15-meter tall giant, The Founder Titan.
The Founder Titan is a 15-meter tall, biomimetic android with a human pilot, located in the nape. While its body is made up of the toughest materials known (graphene-reinforced stuff, etc..), this thing's true power comes from the billions of tiny robots that swirl around it, creating a fog 1.5-2 kilometers in radius. These robots are called foglets, their swarm, the utility fog.
Hall thought of it as a nanotechnological replacement for car seatbelts. The robots would be microscopic, with extending arms reaching in several different directions and could perform three-dimensional lattice reconfiguration. Grabbers at the ends of the arms would allow the robots (or foglets) to mechanically link to one another and share both information and energy, enabling them to act as a continuous substance with mechanical and optical properties that could be varied over a wide range. Each foglet would have substantial computing power, and would be able to communicate with its neighbors.
In the original application as a replacement for seatbelts, the swarm of robots would be widely spread out, and the arms loose, allowing air flow between them. In the event of a collision the arms would lock into their current position, as if the air around the passengers had abruptly frozen solid. The result would be to spread any impact over the entire surface of the passenger's body.
While the foglets would be micro-scale, construction of the foglets would require full molecular nanotechnology. Hall suggests that each bot may be in the shape of a dodecahedron with twelve arms extending outwards. Each arm would have four degrees of freedom. The foglets' bodies would be made of aluminum oxide rather than combustible diamond to avoid creating a fuel air explosive.
As you guessed, the Founder Titan can choose to create this smart air-fuel explosive that can be dispersed and condensed at will.
So, in the epic battle against the entire US Army, the Founder Titan simply goes to a nearby hiding spot, disperses the fog and recondenses it at the base around the gate, a small spark, and (on the other side of the gate)...
So, no more army, no more gate. Good, for us. There is still one problem, however.
The Founder Titan is incomprehensibly strong, compared to the rest of the world. Dragons are considered to be one of the most fearsome creatures because they can destroy a
village hamlet in one go and kill one-two dozen soldiers. The Founder Titan looks at that, laughs, then blows up King's Landing, with Cersei, her pirate boyfriend, the war elephants, and the Molten Company still inside.
It's not like you can make another Founder Titan, as the methods of doing that were buried by its creators who themselves had vanished, 2000 years ago. To sum up:
- You can't destroy it
- You can't match it
- You most likely can't resist the temptation to use it
- You'll probably do everything in your power to use it again
This applies to the human pilot as well.
The Founder will likely have to be used again, but until then, it somehow has to be on standby, but remain inaccessible to everyone (pilot included) and resist any attempt at cracking/jailbreaking without harming the cracker/jailbreaker. How can it do that?
The people who are trying to crack it are equivalent to Earth's best experts.