The principle states that the description of a volume of space should be thought of as encoded on a boundary to the region, preferably a light-like boundary like a gravitational horizon. For a black hole, the principle states that the description of all the objects which will ever fall in is entirely contained in surface fluctuations of the event horizon.

At this point in time the only way to experiment with this theory is to analyze it with a GEO600, shifting maximum sensitivity towards even higher frequencies. The frequency of maximum sensitivity is the tone that the detector can hear best (using "squeezed vacuum). It is normally adjusted to offer the best chance for hearing exploding stars or merging black holes.

Even if it turns out that the mysterious noise is the same at high frequencies as at the lower ones, this will not constitute proof for Hogan’s hypothesis. It would, however, provide a strong motivation for further study

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