Well there’s a coincidence, I posted this recently (regarding decentralisation):
I also referred to mycelium, as far as I’m aware a single organism exists somewhere (in the US?) which is the largest living organism on Earth, and is essentially immortal, as long as the forest it inhabits exists.
Your idea that we are a part of a distributed consciousness, likened to mycelium, is extremely interesting to me. Perhaps we are just the surface fruit, like mushrooms, and although temporary in that respect, the underlying network always remains.