02-03-2016, 11:22 AM
That's an interesting statistic. How many words were in the text used? I guess you counted all overlapping sequences, so that the total nuber of 4-word sequences is N(word)-3.
The next question would be what would be a 'normal' number for a known plain text.
And the next.... since such a text would be edited and spell-checked, what would happen if one intruduces arbitrary errors in this text, e.g. one arbitrary substitution every 80, 40 or 20 characters.....
I do agree with your conclusion though, but it would be interesting to see the magnitude of the problem.
The next question would be what would be a 'normal' number for a known plain text.
And the next.... since such a text would be edited and spell-checked, what would happen if one intruduces arbitrary errors in this text, e.g. one arbitrary substitution every 80, 40 or 20 characters.....
I do agree with your conclusion though, but it would be interesting to see the magnitude of the problem.