Project Schwelle: NASA/ESA Secret Program for Calculating the Convergence Event

Alleged secret research program, officially declared as a study of spacetime anomalies in supermassive black holes. In reality, it is said to calculate the timing of a 'convergence event' — the moment when the membranes between different realities thin sufficiently for something to pass through. Timeframe: 18 months to 3 years (conservative models), possible at any time (aggressive models). Source: former employee of classified projects, Toledo.