If someone tells you "You are just the same person as you were many years ago" shows that you have not changed. It is an alarm bell for you.
If someone says "you have changed". It means you have changed with time.
If someone says "I cant recognise you" it means you have changed a lot.
If someone says "Do I know you?" It simply means you have transformed completely. Or it could be that the person never paid attention to you then but is paying attention now.
Earlier I used to think that being the same person is good but now I realise that it is not.
One should not only change fast but also change more.
What about you?