What would the giants do? Did Galileo Galilei know that Saturn had rings when he first looked through his telescope? Did Isaac Newton understand the laws of gra

What would the giants do? Did Galileo Galilei know that Saturn had rings when he first looked through his telescope? Did Isaac Newton understand the laws of gravity when the apple felt on his head? Did Robert Hooke know all the micro-organisms when he first looked through the microscope? I think it's good to have/know/see something you don't understand. Keeps your mind fresh.