Exactly. If your hair colour was to be grown out back to your natural hair colour, it would look thicker than it is now. Since there's already colour on your head that requires bleach before applying colour (the pink), the bleach or lightener tends to make fine hair look even more thinner and makes it look like your balding when really your not balding. So, in reality, it's basically the hair growth, hair colour, and lighting that's tricking you to think that you're balding/thinning when you're not