How does the alternator regulator sense wire work?

[Yendor]

The SENSE line is a positive input to the alternator, and is meant to be feedback giving reference information on the load of electronics on your car. So its supposed to be hooked up the most electrically distant part of your car to let the alternator know if it should be upping the current to compensate. If its hooked up close to the BATT wire (B+ terminal alternator?), which will be virtually the same voltage, then the alternator doesnt think it has to work that hard, and just does enough to keep the voltage steady at 13.8V. Not a bad thing if other systems in your car, like amplifiers, or fuel pumps dont mind getting a little shy of 13.8V.

It's a bit vague but I think there trying to say if the sense wire it's hooked up close to the battery wire B+ terminal at the alternator