Efficient-market hypothesis - Wikipedia

On the other hand, if a small number of species are competing for rather abundant resources, then that market will be less efficient (for example, the market for oil paintings from the Italian Renaissance).
Market efficiency cannot be evaluated in a vacuum, but is highly context-dependent and dynamic.

Efficient Market Hypothesis - EMH - Investopedia

At scales larger than humanity, we can find immunity candidates in the unreasonably life-friendly nature of the universe as a system (Davies 2004), and in Earth’s geophysical systems, as characterized in the Gaia hypothesis (Lovelock and Margulis 1974).

Investor Home - The Efficient Market Hypothesis

Efficient Market Hypothesis: Is The Stock Market Efficient?

The hypothesis further predicts that an astronomically short time later these civilizations would reorganize their solar system's planetary matter to achieve vastly greater STEM density, efficiency, and computational capability, a transition we may call a developmental singularity (Smart 2008).