The CNS (central nervous system) is destroyed immediately, if the neurons are spread out over your shoe then they can’t talk to one another, thus the fish ceases to be…
Oh my dear, sweet Lord. I read this, and at first almost giggled, as I thought this was a child's interpretation of neuroscience. I realize quickly that it was an adult, and became afraid for my species.
First of all, the "neurons are all over your shoe". Are you serious? I suppose technically speaking, that is true as virtually all of the fish is all over your shoe. However, neurons do not communicate with each other, they communicate with the brain via CNS, relaying messages of pain, stimulus, sensory information. Their messages travel far faster than your barbarian-style boot does, so yes, the neurons did, for a brief time, relay pain. Speaking of brief time...
There is no unit of time in science known as immediately. There is a moment of time between when your shoe fully contacts and transfers force, and the fish is destroyed. Ergo, there is a moment when pain is felt, as the force transfer between your foot and the fish and the Earth beneath it is not of the same, or faster, velocity than the signals of the primitive, all-be-it present neurons.
I'm not arguing one way or the other on the ethical matter. I am, however, arguing on the informed matter.
Yes, if you kill your fish, and any animal, by stomping (or dropping a freeway overpass on it, as another user pointed out) it WILL feel pain. It will be only for a brief moment, less than .1 seconds probably. The most painless way to put a Fish down is with clove oil or another anesthetic.
This is my first and last post on the site. Good God I had heard this was a respectable site until my first thread I read is a vegetarian recommending stomping a fish out and its okay because their neurons are on your foot and then a bunch of people freaking agreeing with him.
Open a science book before you start mislabeling quick and painful ways of euthanasia as quick and painless. The realization that there is, in fact, a singular instant of pain is enough to discourage most.
Clove oil.
Go buy it.
Put your boot away, Conan.