Obviously it’s possible to get fast with any technique. Watching this video and the one below, it almost appears like touch-typing but only neglecting to use other fingers. My only concern in the videos above and below is two-fingering appears to require a lot of wrist and sometimes arm movement to reposition hands to hit every key with the index fingers, where touch typing ideally keeps your wrists in place and relies on finger dexterity instead of larger hand movements. Part of the technique of touch-typing is to prevent repetitive stress injury or the dreaded carpal-tunnel syndrome.
I’m sure it would be probably difficult for an adult to unlearn this technique for a different one.
Stephen King is an avowed two-finger typist. I’ve seen a brief video of him at the word processor and he appeared to type fast. He’s also allegedly the first novelist historically to complete an entire book using a word processor (a $14k Wang circa 1982.)
