You can travel through time. You can go to every moment in human history when someone thought up the idea of a vaccine and tried it out. According to Wikipedia (
) that includes India or China B.C.E. ("smallpox inoculation was started in China or India before 200 BC.") You can stop the experiment.
So let's say you do, and not one single vaccine is ever developed.
What would the world look like now?
(Remember that in time-travel stories you are always at risk of negating your own existence in the present.)
This is a very different question from what would happen if everyone stopped vaccinating starting in 2009.
) that includes India or China B.C.E. ("smallpox inoculation was started in China or India before 200 BC.") You can stop the experiment.So let's say you do, and not one single vaccine is ever developed.
What would the world look like now?
(Remember that in time-travel stories you are always at risk of negating your own existence in the present.)
This is a very different question from what would happen if everyone stopped vaccinating starting in 2009.











