I was going to post this comment if it wasn't already here! Pretty much every innovation/invention that has ever occurred has been taking past inventions and ad

I was going to post this comment if it wasn't already here! Pretty much every innovation/invention that has ever occurred has been taking past inventions and adding just a small new thing. Of course, there are plenty of completely new inventions (transistors, lasers, etc), but they are few and far between. Standing on the shoulders of giants!