User blog comment:Logo12/Typo towers? Or Rhyming Towers?/@comment-25828378-20140409153104/@comment-28857013-20140410225735

Well, while you may actually say "one can type keys that differ by 8 key units", but that will be extremely unlikely, especially only typing ONE letter with such a distance.

Typing 8 keys away can be made either by reverse hand, like Meta07 said, that I won't possibly make it because I use an asymmetric way of typing, but for touch typing, it can be done.

HOWEVER.

That is not really the case like said in those towers, like M and D, which according to touch typing, it's typed with Index finger and Middle finger respectively. Mistaking that simply means you don't type with the said method, but "Hunt and Peck(Finding the letter and press with 1-2 fingers only)", which is possible in case you looked for the wrong key (especially when one's entire keyboard is blackened for blindfold typing).

That's all I can think of a 8 key typo, unless you say you are in a dvorak keyboard and you remembered it as qwerty. But that wouldn't be possible for only ONE key to fail in any way.