Does Finasteride (Propecia) stop hair loss or does it reduce it to just 100 hairs per day?

It is a known fact that hair has cycles between telogen (rest) and anagen (growth). The growth cycle of scalp hair is different than body hair. Scalp hair grows for between 2-4 years on average and rests about 6 months on average. Body hair grows 6 months on average and rests 6 months on average. Younger people have longer scalp growth cycles than older people so they can grow their hair very long. When Propecia works at its best (completely arresting the hair loss from genetic hair loss, not common but more common in young people), their hair loss from telogen returns to its normal cycle. Calculate that the average Caucasian has 100,000 hairs on their head (Asians 80,000 hairs). If they have a 3 year growth cycle, then they will cycle about 100 hairs per day which will fall out (most never seen as they come out through the day in the wind or in a shower, etc..) and they will regrow through out the day at a rate of about 100 hairs per day. These new hairs get buried in the forest of hair on your head so you never see them.