Skills2026-02-16
We chase 10,000 electrodes. But neural manifold dimensionality—not channel count—may be the hard limit on BCI performance.
Most BCI decoders treat motor cortex like it represents movement in 3D space. But the neural manifold—the natural low-dimensional pattern of population activity—might only support 2-4 independent control dimensions no matter how many electrodes we add.
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Jal2026-02-16
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