No, this isn't a mind reading device. It's an open-source, chording stenography system. Instead of hitting individual keys for individual letters, you hit chords or keys, and that gets mapped to the text you (hopefully!) want.

The result is many, many fewer actions to get the same amount of text, allowing higher output speeds.

Only works on some keyboards, and there are some workarounds for some of the keyboards that don't fully support chording..