You can replace a whole keyboard with markovian 1D input. See Dasher project for that, it's an interesting input method. (Swiping keyboards use something of tha

You can replace a whole keyboard with markovian 1D input. See Dasher project for that, it's an interesting input method. (Swiping keyboards use something of that, but work on word basis not letter.) https://en.m.wikipedia.org/wiki/Dasher_(software) https://en.m.wikipedia.org/wiki/Dasher_(software)