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Ring  also proposes a method for
bridging long time lags.
Whenever a unit in his network receives conflicting error signals,
that is, certain error signals suggest to increase the unit's
activity while others suggest otherwise,
he adds a higher order unit influencing appropriate connections.
Although his approach can sometimes be extremely fast,
to bridge a time lag involving 100 steps may require
the addition of 100 units. Also, Ring's net does not generalize to
unseen lag durations.