Multiversoscope: An Instrument and Scientific Complex for Observing Phenomena in Neighboring Universes of the Multiverse Based on the Principle of the "Reasonable Echo Sounder of the Multiverse"

This article presents a conceptual project for the Multiversoscope — a computing complex for the indirect observation of neighboring universes based on the Infinite-Dimensional Multiverse Model (IDM). Since direct detection of signals from other universes is impossible by definition, the Multiversoscope employs the principle of the "reasonable echo sounder of the multiverse": a cyclic procedure involving model construction, derivation of predictions (markers), measurement of these markers in our Universe, comparison with data, and model refinement. The instrument's architecture consists of three layers: a data preprocessor (collection and calibration of cosmological data), an analytical core with an IDM template library and anomaly detection modules (constant variations, CMB anomalies, Λ dynamics, gravitational-wave background), and a forecast generator that produces a probabilistic map of the multiverse and recommendations for subsequent cycles. The Multiversoscope is not a telescope in the classical sense — it does not receive signals from the object of study. It is a navigation system for the multiverse, necessary for any future interuniversal transitions (probes, crewed missions). Technological requirements include exaflop-scale computing power, petabyte-scale data storage, and machine learning algorithms. Modifications (Multiversoscope-Lite, -Dipole, -Network, -Generator, -Navigator), development stages (2026–2050), and differences from existing projects (SETI, astroarchaeology) are discussed. The development of the Multiversoscope is a natural continuation of the "echo sounder of cognition" program and the IDM.