[jeffbee]

Not all people experience thought the same way. Some people (like me) find it no problem to compose a sentence in advance while speaking some previous words. The speaking doesn't conflict with the composition. Some people can count, do math, or keep time silently in their head while reading. Other people can't do that because their thoughts and language processing are linked differently somehow.

For me, I prefer to dictate to my Android phone in contexts where most people choose to type, such as in a short message. It's faster than typing on-screen, and the way I think I am able to compose ahead in a way I can't do while typing. The dictation is so good these days that there are relatively few mistakes and ambiguities to correct, and the UIs for doing so have become easier.