Explainers
Long-form answers to the questions people actually ask about brain-computer interfaces, with sources.
Explainer
How Does a Speech Neuroprosthesis Work?
A speech neuroprosthesis records the brain's speech motor signals and uses AI decoders to turn attempted speech into text or a synthesized voice.
Explainer
How Fast Can a Brain-Computer Interface Decode Speech?
Speech BCIs went from 15 words per minute in 2021 to 62–78 wpm in 2023 and near-real-time voice in 2025. Here are the verified benchmarks.
Explainer
Invasive vs Non-Invasive BCI: What Each Can and Cannot Do
Implanted BCIs have restored fast, large-vocabulary speech in trials. Non-invasive EEG, MEG and fMRI avoid surgery but decode far less. A neutral comparison.