If an object is incapable of reflecting and absorbing light, our eyes wouldn't be able to see it, correct? Do you think a solid or liquid mass on Earth is capable of resisting light absorption and reflection to a degree that it's entirely unseen (therefore achieving true invisiblity)? Do you think certain masses have yet to be discovered due to our inability to see them? Note: I'm not talking micro-organisms here. I'm talking about things large enough to be seen with the naked eye if they were visible (i.e. things easily seen like rocks/sands, water, and insects).