The smartphone era is simply very young still. The QUERTY keyboard is fast enough for most use cases, but without autocomplete it's pretty much broken on smartp

The smartphone era is simply very young still. The QUERTY keyboard is fast enough for most use cases, but without autocomplete it's pretty much broken on smartphones. Optimized systems exist though, for example the MessageEase keyboard. It's almost exactly how you describe, but capitalization is done by circling or by swiping back and forth. Court writers have more advanced systems, but they also take a lot more equipment and more time to become fluent with.