Do we really believe that this kind of stuff has any chance of scaling and becoming generally useful?
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Using shiitake mushrooms to build memristors for space? Eh.
Just worth noting that fungus in general is a world we know very little about, despite them being more closely related to animals than plants are. It's why so many mushrooms tend to have healthy compounds in them. It's something we should be studying in any generic sense, just because the knowledge gap is so huge.
Note: the reason it's dangerous to eat random fungus isn't because it's likely to kill us, but rather because they produce such an absolute plethora of chemicals that one is bound to not mix well with us. False morels produce hydrazine! That's rocket fuel!