Professional Song writer here, I wrote the lyrics to hundreds hundreds of songs without writing them down . I always felt the ones I remembered, by reciting over and over again we're the ones to produce. 25 years later, I look back and realize, it was not the best technique for creativity. People I know that create lyrics, or just record them without ever writing them down or really memorizing them, usually are able to create much faster. Generally, when they listen back to what they recorded a few days later, it feels like something new and creative. We are as a person that creates in their brain, and reinforces it over and over again, when I listen back to a particular recording, it has to sound like what's been in my head the whole time. I was always trying to produce song is exactly they were in my head. That's not necessarily a free-flowing way to create. I feel now that my creativity was limited , because I was always trying to reinforce the same lyrics, without recording them by writing them down or putting them to "tape". Jay Z, is an artist that generally just creates and records on the spot. Tupac, was an example of an artist, that wrote all the time on paper... notebooks lyrics, similar to Eminem, who is a completely different animal. The way I say all that to say this, that small time that you have while you're writing down words, does help reinforce memorization. Typing it is much more free-flowing, with less time to memorize what you're doing. I don't know my two cents