We are so arrogant as species. Virus is living organism which hibernate in unfavourable environments and become alive in proper conditions. So there is life all over the universe! If we can’t intellectually grasp something that doesn’t mean it’s non existent. So goldilock zone can be applied only to species known to humans. Few years ago scientists discovered microorganisms which thrive in anaerobic inviroment, deep in volcanic springs. Lava definitely can’t be considered as “proper” inviroment for biological thriving.