Chorded keyboards didn't work because they had keys. Smartphones didn't work because they had not enough board. So, if you come up with something that's larger than a smartphone and can run a chorded keyboard without keys, you use...
...yes, you use qwerty.
It's not just the typography. Typing in iPad is stupid, too.
If every person had just one child, the world population would drop by 50% in thirty years, disregarding wars, catastrophes and epidemics.
The world won't end. It'll just change... when you notice it may end.