In fact any experiment that measures a quantum effect is one in which the quantum effect is aligned with the behavior of some heavy, macroscopic object; that's how we measure it.
-- Murray Gell-Mann
   
Murray Gell-Mann   Name:
Murray Gell-Mann
Type:
Physicist
Nationality:
American
Birth:
September 15, 1929
https://www.nutquote.com/quote/Murray_Gell-Mann