This program can be used to test the readability of text. The same string is presented each time. The total elapsed time for reading the text is 10 seconds for each of the variations. Try to observe the effect of text size, placement on the page, and word grouping on reading comprehension. (Does it help the reader to move the words across the page, as the eye usually scans printed pages?)

The variations in word grouping are: one at a time, consecutive pairs, or "meaningful pairs". I am interested in whether the flow of the entire passage is helped by selecting word pairs based on significance of the pair. For example, here is the fragment "like being banished into forests far from everyone," presented on the left in consecutive pairs, and on the right in meaningful one's or pairs:
like being like
banished into being banished
forests far into forests
from everyone far
from everyone
The quote is from a letter to Oskar Pollak, by Franz Kafka