I don't mean a soulmate either; just somebody who is not way ahead or way behind me. Either way, its wasting somebody's time for no benefit. Worse, the 'ahead' guy is stuck explaining why no, its not a bug, you just don't get the design pattern yet.
Unless the skill level/experience of the two match pretty darn well, its a dead loss in productivity.
Its like video gaming - either you can run circles around them, or they around you. Its really rare to find a good match.
Now compare with programming - its wellknown that skills in this arena range from 1 to 1,000,000. The chances of a good match nearly disappear.