we saw and we changed

Rarely do we a scientific principle such creatively related to human experience. This one is from a letter by Marathi writer-director-producer Vishram Bedekar to his wife of many years.
He has referred to a principle in quantum physics which states that mere act of observing affects the thing or process being observed.
Then he moves on to his personal experience when he met his wife forty years earlier:
"see, when i first saw you forty years ago, you started changing, didn't you? My seeing, mere looking at you, changed you. I kept watching and you kept changing. And you, you saw me, you kept looking at me, and I too kept changing. Now I I have changed so much that nothing has left of what I was"