User blog comment:Logo12/Typo towers? Or Rhyming Towers?/@comment-25828378-20140409153104/@comment-5294711-20140409165327

If you make a typo eight keys away, that's most likely not a normal typo at all, it's a whole different error entirely: the reversed hand. Basically, you're supposed to hit a key with say, the index finger of your left hand, but you accidentally pressed your index finger on your right hand instead. Unless the 2 letters are in a likely "reversed hand combination", a typo with like 3-5 keys away are actually way more difficult to happen.