I still don't understand. Typing takes a definitive amount of time. Touch typing can cut that time significantly. I do agree with that. However, claiming that typing slowly makes you lose your flow appears a bit far fetched to me.
Here's my experience typing on a keyboard (familiar) vs. an iPad (unfamiliar): I can type almost as fast on an iPad, but because of the unfamiliar spacing I have to devote some cognitive energy to the task and occasionally my brain switches from what I'm thinking about (note-taking or programming) to moving my hands to the right place. It does occasionally break my concentration and make it somewhat harder to enter flow. I imagine that I'd have a similar experience if I didn't know how to touch-type.
The problem with iPad keyboards (and all other software keyboards) isn't just that they're unfamiliar compared to physical keyboards, but that they have no tactile feedback.
A touch-typist typing on a physical keyboard will know without having to look that he's pressed the right key and that the keypress registered. On a software keyboard one always has to look.
This makes touch-typing on a software keyboard virtually impossible.
that's because you're phrasing the claim badly. the claim is not typing slowly makes you lose flow, but that hunt-and-peck typing causes you to lose flow.. It's pretty simple imagination from that to hypothesize why that is the the case.
