Fungus

Fungus often gets a bad press. Take the shaggy bracket. The fungus is familiar to foresters and orchardists as a serious tree disease capable of causing a white rot that weakens trees to the point where they lose major limbs or worse,
But the mushroom does have several uses, however, most notably for dying wool. Depending on the age of the mushroom when picked and which metallic salt is used as a mordant, it can produce green, red, orange, or yellow, all in rich but muted, earthy tones[iv]
Shaggy bracket is also a traditional part of Chinese folk medicine, where it is used to treat a wide range of conditions, including dyspepsia, cancer, and diabetes.
So half empty or half full? Much like how we view life!