As it is still unknown WHAT gravity is exactly, a study focusing on that would be extremely interesting.
As far as discussing the REALITY of gravity, it IS discussed in elementary school, high school, and college. It's effects can be calculated and observed.
Not so with vaccines, as we are taught to BELIEVE that they work on faith alone, as very few people actually have the means to PROVE they work. Difficult theories to prove ARE given rigerous scrutiny in the physical sciences, experiments are conducted, data collected, and analysis performed. I have not seen ONE valid study on the effectiveness on vaccines however.
For an experiment to be considered valid, it has to be reproducable. It also has to consider a statistically significant number of data elements. I have seen none of this in relation to vaccines...
I look forward to our future debates, but tonight, I will back down out of respect.
Can you show us the same amount of verified and well documented alternatives to immunization?