If we take some text and shuffle a bit the letters in the words like this one below then we still be able to read it. Try:
If we tkae smoe txte and suhffel a bit the tletesr in the wodrs ilke htis one bwloe thne we sltil be albe to raed it.
It’s just one more magic feature of our mind. Well, all people can’t do that but about 50% can.
I implemented python script text_distor.py to shuffle the text in this way. It handles punctuation correctly, so, you have variant of the text exactly as it needs for such cognitive test.
Reverse algorythm to restore original text more interesting as it’s image recognition task. So, I’m going to do it as well when I have more free time.