What’s the most interesting thing you learned in science

Question: What's the most interesting thing you learned in science
- Keywords:
  interesting,
  learn
Asked by 993fddk26 to Gonzalo, Elaine on 7 Nov 2017. This question was also asked by 793fddk26.
- Gonzalo Delgado-Pando answered on 7 Nov 2017:
  
  In general, that there are only a few things that will not change and that everything must be questioned.
  In particular I found very interesting when I first studied science the fact that everything is chemistry and all the things are chemistry based, even you and me are just formed by chemical elements, the food we eat as well…etc

Question: What's the most interesting thing you learned in science