If NOT is modeled by flooding a power plant and causing it to turn off, would it go back to being on after a while if we stop actively flooding it? Ie, If the input goes to 0, does the output go back to 1 or not? If this doesn't hold then it's not a proper NOT gate to begin with(turns 1 to 0 but doesn't turn 0 to 1) and the implementation is flawed.
[1] https://stackoverflow.com/questions/4908893/what-logic-gates...
However, as the comments to the post say, the author should provide a proof that the "game physics" allows to construct a functioning latch from these logic gates.
Conditional loops are not essential: the lambda calculus is TC despite lacking any loop primitives.