Extraho

Extraho is a term used predominantly in speculative fiction and informal theoretical discourse to denote a hypothetical process, device, or field associated with extracting energy, information, or matter from a source outside a given system. There is no standardized definition or formal recognition in mainstream science, and meanings vary by author or context.

The name appears to be a neologism built from the prefix ex- meaning 'out' and a root related to harvest or extraction, chosen for its connotations of drawing resources from a source.

In science fiction, extraho devices are often imagined as mechanisms to tap energy from vacuum states, higher dimensions, or parallel worlds, sometimes enabling rapid power generation or resource acquisition. In philosophical or thought-experimental writing, extraho serves as a marker for discussing the limits of conservation laws, information transfer, and causality when nonlocal or cross-dimensional effects are allowed.

Because no empirical evidence supports the feasibility of extraho-like processes, discussions remain speculative and stylistic.

Some authors use extraho as a plot device to explore ethical implications of resource extraction or the consequences of breaking physical constraints.

See also energy harvesting, zero-point energy, extradimensional theories, thought experiments.