bottleneck effect

This term describes a restrictive point in a system that limits overall capacity, regardless of how efficient the other components are. In business or technical contexts, it carries a negative connotation of inefficiency and frustration, often used to justify the need for systemic upgrades or process redesigns.

In biological and genetic contexts, the term refers to a specific evolutionary event. It describes a precarious state where a population's genetic pool is severely diminished, increasing the risk of extinction or the prevalence of harmful recessive traits. The genetic sense is a descriptive scientific observation of population history.