Comment by Hani1337

I firmly believe that life on Earth was triggered by spores meeting water and developing mycelium networks breaking down minerals into nutrients and slowly taking advantage of photosynthesis to develop more complex life forms. Spores can easily resist the vacuum of space, and pass any form of great filter. They do help create enzymes and uptake nutrients, they do help break down minerals, they do communicate with entire ecosystems, and so much more we barely understand. This would mean that fungi are of alien origin.