I wnder if you could build elevation into this sort of 'analog simulation', maybe in the form of something that a slime mould doesn't like to grow over? It wou

I wnder if you could build elevation into this sort of 'analog simulation', maybe in the form of something that a slime mould doesn't like to grow over? It would probably be tough to get them to grow like switchbacks, tunnels, and bridges though...