What do you think was the greatest invention so far?

Question: What do you think was the greatest invention so far?
- Keywords:
  invention
Asked by Jessica109 to Souvik, Sabine, Maria, John, Faye, Armin on 12 Nov 2019. This question was also asked by Hazel1597, game45day.
- Maria McNamara answered on 12 Nov 2019:
  
  The printing press, for bringing knowledge to the masses.
- Armin Shams answered on 13 Nov 2019:
  
  Computers (and internet)

Question: What do you think was the greatest invention so far?