The prediction is based on the news itself. E.g. GDP release gives high impact on forex, and if it increases, USD will shoot up like a rocket. That's the algorithm. Technical indicators can only project to very near to future, so it's probably not suitable for forecast economic data, direction.
In the future, the prediction is going to be complex, meaning i'll be integrating like artificial intelligence of neural network and man-made analysis.
Right, after that, it will be a full blown Future Chart showing not past prices but those of future. The chart will be amazingly accurate, and we can "Make REAL Money in Forex" with this tool.
If the prediction happens to be very wrong, the calendar will alert you immediately to close any associated position. It'll greatly minimize the loss. But this feature might be available in paid Premium edition only--senior members get Premium for free. The real-time data costs $2000/month; that's a heavy load for free version.