BCI is a closed loop, not a mind-reading demo
Explain why a reliable BCI must be managed as a closed improvement loop rather than a one-time decoder.
The reframe: a BCI is a learning system wrapped around a person. Plan the loop Plan the intention, signal source, interface response, and safety boundary before you run. For a motor-imagery cursor, that might mean left-hand imagery, C3/C4 channels, 800 ms update windows, a 2-second dwell target, and a hard stop after three unintended selections. Check the whole system Do not check only classifier accuracy. Check latency, false activations, user fatigue, artifact rate, target design, and whether feedback changed the user's strategy. A BCI can be technically correct and practically unusable if the correction arrives too late or the target…
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