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Playground
by Nahid
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Fish Brain
— a neural network you can grow
Every input node you add is a new sense. Watch what it costs the fish to be missing one.
0
nodes
0
alive
0
eaten
—
deaths / min
the brain — live activations of the ringed fish
Click a ghost node
to give the fish that sense
amber = positive weight · blue = negative
the tank
Click any fish
to watch its brain above
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Playground by Nahid
— interactive learning, made to play.
© 2026 Playground by Nahid · Made with curiosity.