Comment by HWR_14

10 hours ago

It's not just moisture sensing. Modern dryers also use patterns to prevent shrinking in terms of reducing the heat and then bringing it back as opposed to a constant temperature until dry.

Unless the load is very small this doesn't really do much - water evaporates and uses however much heat the dryer can put out. It is only near the end of the cycle where this can make a difference in most cases.