A speculative method of information transfer using the temporal structure of spacetime crystals as a carrier wave. Unlike radio, which modulates amplitude or frequency, spacetime crystal communication would modulate the phase of time itself—the relative timing of the crystal's eternal ticks. Such a signal would be extraordinarily robust, difficult to jam, and potentially capable of operating in environments where conventional electromagnetic transmission fails (deep underground, in plasma, across vast interstellar distances).
Spacetime Crystals Communication *Example: A deep-space probe powered down for centuries wakes up. Its only active component is a tiny spacetime crystal, oscillating in perfect phase since launch. Earth sends a signal: a precisely timed pulse that shifts the probe's crystal phase by π/2. The probe reads this shift. This single bit—"wake up and transmit"—required no power to maintain, could not be intercepted without detection (any measurement would disturb the phase), and will remain readable for millennia. This is communication through the geometry of time.*
by Dumu The Void February 11, 2026
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