That's sort of why the link epicstruggle posted was so troubling. It's so full of non-words and cutoff words and impossible conjoinings of parts of or whole words and no complete sentences. So you end up getting confused and not being able to piece anything together in your head in order to plan finger motions several strokes ahead or use muscle memory. On that site, it was nigh impossible to even maintain half the average speed I got on suryad's link.
And of course, error rate was also insanely high there as well. When you see "t-h-e-r-e-m", you immediately want to type "theremin" not stopping yourself when you get to "m" to avoid the error since the so-called word was actually "theremself." How do you type fast when you see all this "theremself wase inside doggrw killingest the brid winehou re smarterer lysine"?